Канал: victor gorelik

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984. This isosceles triangle has been split into four smaller ones. What’s the missing angle?

984. This isosceles triangle has been split into four smaller ones. What’s the missing angle?

983. What’s the shaded area?

983. What’s the shaded area?

982. What’s the area of the circle?

982. What’s the area of the circle?

981. Two semicircles are placed on the diagonal of a square. What’s the total shaded area?

981. Two semicircles are placed on the diagonal of a square. What’s the total shaded area?

980. The three smaller squares are the same size. What’s the angle?

980. The three smaller squares are the same size. What’s the angle?

979. The circles have diameters 1,2 and 3. What’s the angle?

979. The circles have diameters 1,2 and 3. What’s the angle?

978. The center of the semicircle lies on the perimeter of the quarter circle. shaded area?

978. The center of the semicircle lies on the perimeter of the quarter circle. shaded area?

977. Three squares. What’s the angle?

977. Three squares. What’s the angle?

976. Three squares. What’s the angle?

976. Three squares. What’s the angle?

975. An orange rectangle and a black square. What’s the shaded area?

975. An orange rectangle and a black square. What’s the shaded area?

974. Two congruent rectangles are packed into a square. What’s the angle?

974. Two congruent rectangles are packed into a square. What’s the angle?

973. Four squares. What’s the total shaded area?

973. Four squares. What’s the total shaded area?

A1_4_2 (page=1, row=4, col=2) 972. The triangle is equilateral. What’s the area of the circle?

A1_4_2 (page=1, row=4, col=2) 972. The triangle is equilateral. What’s the area of the circle?

971. What’s the area of the toppled square?

971. What’s the area of the toppled square?

970. I’ve stacked three right-angled triangles to make this rectangle. What’s its area?

970. I’ve stacked three right-angled triangles to make this rectangle. What’s its area?

969. 6 congruent rectangles. What’s the angle?

969. 6 congruent rectangles. What’s the angle?

968. The outer shape is a square. What’s the missing angle?

968. The outer shape is a square. What’s the missing angle?

$967. All four triangles are equilateral. What fraction of the rectangle do they cover?$

967. All four triangles are equilateral. What fraction of the rectangle do they cover?

$966. The bases of the semicircles are parallel. What fraction of the circle is shaded?$

966. The bases of the semicircles are parallel. What fraction of the circle is shaded?

965. The radius of the quarter circle is 5. What’s the total area of the four squares?

965. The radius of the quarter circle is 5. What’s the total area of the four squares?

$The two shaded semicircles are the same size. What fraction of the larger semicircle do they cover?$

The two shaded semicircles are the same size. What fraction of the larger semicircle do they cover?

963. Some squares and a semicircle. What’s the perimeter of the combined shape?

963. Some squares and a semicircle. What’s the perimeter of the combined shape?

$962. Four squares. What fraction is shaded?$

962. Four squares. What fraction is shaded?

961. The four marked angles are equal. If the rectangle’s width is 3, what’s the area of the circle?

961. The four marked angles are equal. If the rectangle’s width is 3, what’s the area of the circle?

960. The point lies on the diagonal of the square so that a + b = c. What’s the angle?

960. The point lies on the diagonal of the square so that a + b = c. What’s the angle?

959. What’s the angle?

959. What’s the angle?

$958. What fraction is shaded?$

958. What fraction is shaded?

957. Four squares inside a rectangle. What’s the angle?

957. Four squares inside a rectangle. What’s the angle?

$956. What fraction of the circle do these four quarter circles cover?$

956. What fraction of the circle do these four quarter circles cover?

954. Both hexagons are regular. How long is the pink line?

954. Both hexagons are regular. How long is the pink line?

955. The equilateral triangle has been split into two equal areas. What’s the area?

955. The equilateral triangle has been split into two equal areas. What’s the area?

953. Two quarter circles. What’s the angle?

953. Two quarter circles. What’s the angle?

952. The rectangles are congruent, each with area 9. What’s the area of the triangle?

952. The rectangles are congruent, each with area 9. What’s the area of the triangle?

951. Two squares and an equilateral triangle. What’s the angle?

951. Two squares and an equilateral triangle. What’s the angle?

950. Two squares and an equilateral triangle. What’s the angle?

950. Two squares and an equilateral triangle. What’s the angle?

949. The areas of the three squares are given. What’s the area of the red triangle?

949. The areas of the three squares are given. What’s the area of the red triangle?

948. What’s the area of this triangle?

948. What’s the area of this triangle?

947. Four squares. What’s the shaded area?

947. Four squares. What’s the shaded area?

946. Two squares inside an equilateral triangle. What’s the angle?

946. Two squares inside an equilateral triangle. What’s the angle?

945. The triangle is equilateral. What’s the angle?

945. The triangle is equilateral. What’s the angle?

$944. What fraction of each circle is shaded? The source: @ cshearer41$

944. What fraction of each circle is shaded? The source: @ cshearer41

$943. The three green rectangles are congruent. What fraction of the square do they cover?$

943. The three green rectangles are congruent. What fraction of the square do they cover?

942. A chord, of length 6, splits the square in half. What’s the area of the semicircle?

942. A chord, of length 6, splits the square in half. What’s the area of the semicircle?

941. What’s the area of the quarter circle?

941. What’s the area of the quarter circle?

940. What’s the area of the circle?

940. What’s the area of the circle?

939. What’s the area of the rectangle?

939. What’s the area of the rectangle?

938. A semicircle and quarter circle inside a square. How long is the black tangent line?

938. A semicircle and quarter circle inside a square. How long is the black tangent line?

937. Four squares and an isosceles triangle. What’s the blue area?

937. Four squares and an isosceles triangle. What’s the blue area?

936. All three squares are the same size. What’s the angle?

936. All three squares are the same size. What’s the angle?

935. The small circles each have area 1. What’s the area of the large circle?

935. The small circles each have area 1. What’s the area of the large circle?

934. Two often used properties of the area

934. Two often used properties of the area

933. What’s the diameter of the largest semicircle?

933. What’s the diameter of the largest semicircle?

932. Five congruent rectangles. What’s the angle?

932. Five congruent rectangles. What’s the angle?

931. Two equilateral triangles. What’s the angle?

931. Two equilateral triangles. What’s the angle?

$930. What fraction of this regular hexagon is shaded?$

930. What fraction of this regular hexagon is shaded?

929. Three squares. What’s the angle?

929. Three squares. What’s the angle?

928. The shaded square covers half the larger square. What’s the angle?

928. The shaded square covers half the larger square. What’s the angle?

$927. The three angles are equal. What fraction of the rectangle is shaded?$

927. The three angles are equal. What fraction of the rectangle is shaded?

926. What’s the green area?

926. What’s the green area?

$924. What fraction of this regular hexagon do the equilateral triangles cover?$

924. What fraction of this regular hexagon do the equilateral triangles cover?

923. The two rectangles are congruent. What’s the angle?

923. The two rectangles are congruent. What’s the angle?

922. What’s the total shaded area?

922. What’s the total shaded area?

921. Three squares. The green square has area 16. What’s the area of the blue square?

921. Three squares. The green square has area 16. What’s the area of the blue square?

920. These houses are made from squares and equilateral triangles. What’s their total area?

920. These houses are made from squares and equilateral triangles. What’s their total area?

919. The orange area is 10. What’s the blue area?

919. The orange area is 10. What’s the blue area?

$918. What fraction of the rectangle is shaded?$

918. What fraction of the rectangle is shaded?

917. Three squares inside a circle. What’s the circle’s area?

917. Three squares inside a circle. What’s the circle’s area?

916. Three squares inside a circle. What’s the circle’s area?

916. Three squares inside a circle. What’s the circle’s area?

915. The area of the red square is 12. What’s the total yellow area?

915. The area of the red square is 12. What’s the total yellow area?

914. Three squares. What’s the shaded area?

914. Three squares. What’s the shaded area?

913.Five squares. What’s the total shaded area?

913.Five squares. What’s the total shaded area?

912. The largest and smallest semicircles are concentric. What’s the shaded area?

912. The largest and smallest semicircles are concentric. What’s the shaded area?

911.Is more of this rectangle red or blue?

911.Is more of this rectangle red or blue?

910. What’s the area of this rectangle?

910. What’s the area of this rectangle?

$909. Four squares. What fraction of the total area does the yellow triangle cover?$

909. Four squares. What fraction of the total area does the yellow triangle cover?

908. Two quarter circles and a semicircle. What’s the shaded area?

908. Two quarter circles and a semicircle. What’s the shaded area?

907. Two squares. What’s the missing area?

907. Two squares. What’s the missing area?

906. What’s the area of this semicircle?

906. What’s the area of this semicircle?

905. Two one-liners: 1) What’s the shaded area? 2) What’s the area of the semicircle?

905. Two one-liners: 1) What’s the shaded area? 2) What’s the area of the semicircle?

904.The square has area 36. What's the area of the right-angled triangle?

904.The square has area 36. What's the area of the right-angled triangle?

903. What’s the area of the toppled square?

903. What’s the area of the toppled square?

902. What’s the total area of these two squares?

902. What’s the total area of these two squares?

$901. What fraction of the total area is shaded?$

901. What fraction of the total area is shaded?

900. Inscribed quadrilateral

900. Inscribed quadrilateral

898. The yellow circle has radius 4. What’s the total area of the two quarter circles?

898. The yellow circle has radius 4. What’s the total area of the two quarter circles?

899. Five rectangles and the square

899. Five rectangles and the square

894. Find the angle

894. Find the angle

897. 3 squares and semi-circle (C. Agg)

897. 3 squares and semi-circle (C. Agg)

896. 3 squares and 1 triangle

896. 3 squares and 1 triangle