Question

can someone please help me to understand this?
Pie

Answer 1

Well the area of a circle is Pi(r)^2, so just put in the radius where it says r

Answer 2

i dont get what your saying like what do i do first.

Answer 3

@madison.bush

Answer 4

just plug in the radius to that equation i just gave you. So it will look like \[A=\pi(9)^2\]

Answer 5

ok so( pie times 9) times 2?

Answer 6

no its pi times 9 squared. 9 squared is 81. So the final equation is \[A=81\pi cm^2\]

Answer 7

so the anwer is D

Answer 8

i got C
A.
1017.36 cm3

B.
169.56 cm3

C.
254.34 cm3

D.
84.78 cm3

@madison.bush

Answer 9

yes it is C.

Answer 10

lol okay thanks!