Asked by Jose

Micah has a new remotely controlled car that has a circular range with a radius of 30 feet. What is the area of the circular range?
Answered by Ms. Sue
A = pi * r^2

I'll be glad to check your answer.
Answered by Jose
"I'll be glad to check your answer." What do you mean about that?
Answered by Jose
What does the r^2 stand for?
Answered by Jose
"You have to figure it out then she says if your right or not. She can't just give you the answer." Oh okay i understand

Answered by Ms. Sue
r^2 is radius squared

Answered by Jose
So do i multiply 30 by 2?
Answered by Ms. Sue
No.
The radius is half of the diameter. So this radius is 15.

15^2 = 15 * 15

A = 3.14 * 15^2

A = ?

Answered by Jose
oh so i do half of 15 then multiply 3.14
Answered by Ms. Sue
Nope. Read what I posted again -- and again if necessary.
Answered by Jose
oh ok
Answered by Jose
so the answer is 47.1 right
Answered by Ms. Sue
No.

What is

15^2 = 15 * 15 = ?
Answered by Reiny
Actually, the radius is 30 ft , not 15

so area = π(30)^2 square feet = .....
Answered by Ms. Sue
oops! Thanks for catching that Reiny.
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