Asked by i hate math and who cares what me first name is

Rachel is frosting the top of two cakes and wants to know which cake will require more frosting. one cake is round with a diameter of 8 inches. the other cake a square with the length of 9 inches. the top of which cake has a larger area? how much larger is it?​
Answered by Ms. Sue
circle: A = pi * r^2
square: A = 4s

Just plug in the numbers

Answered by i hate math and who cares what me first name is
so A=8 r^2 and
A=9s
Answered by Ms. Sue
The radius is not 8. The diameter is 8. What happened to pi?
A = 4s



Answered by Lee
A=pi times r squared=3.14 times 4x4 = 50.265
Do a search for area of a circle and you'll find a great site for solving geometry problems.
Answered by oobleck
it should be obvious that the square is larger, since the circle fits inside it
but by how much?
circle: 16 pi = 50.26
square: 9^2 = 81
.
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