► My Geometry course: [ Ссылка ]
In this video we'll learn how to find the surface area of spheres. The formula we always use to find surface area only requires us to know the length of the radius of the sphere. If we know the diameter of the sphere, we can take half of it to get the radius, and then plug the length of the radius into the equation for surface area.
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If you could use some extra help with your math class, then check out Krista’s website // [ Ссылка ]
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Hi, I’m Krista! I make math courses to keep you from banging your head against the wall. ;)
Math class was always so frustrating for me. I’d go to a class, spend hours on homework, and three days later have an “Ah-ha!” moment about how the problems worked that could have slashed my homework time in half. I’d think, “WHY didn’t my teacher just tell me this in the first place?!”
So I started tutoring to keep other people out of the same aggravating, time-sucking cycle. Since then, I’ve recorded tons of videos and written out cheat-sheet style notes and formula sheets to help every math student—from basic middle school classes to advanced college calculus—figure out what’s going on, understand the important concepts, and pass their classes, once and for all. Interested in getting help? Learn more here: [ Ссылка ]
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