Asked by Chase

Estimate the radius of a circle with the circumference of 272.2 inches. Help me with the steps please?


Answered by rbowh
C = pi * d

272.2 = pi * d

272.2/pi = d

use 3.14 for pi
Answered by Ms. Sue
C = pi * 2r
272 = 3 * 2r
272 = 6r
272/6 = r
45 = r
Answered by Chase
Ms Sue,


I understand it now , but my choice answers none are 45? I followed your steps and got the same answer as you.
But your calculations are right.

Choices are :

43.3 in.
136.1 in.
86.7 in.
5887.2 in

So not sure why ?
Answered by Chase
hahah never mind I got it. Estimation!

So 43.3 in. is the answer. Forgot. Thanks.
Answered by Ms. Sue
Ugghh!

Of course you're right, but I don't like the answer choices with decimals. In my opinion, estimates should not involve decimals.


Answered by Anonymous
Answer is 43.3 A
Answered by mkay
Anyone want answers?
Answered by milkgirl
i do
Answered by Ya mama
Wow a hole year an NO ANSWERS tsk
Answered by Ray
8 years and nobody answered
Answered by Ray
The answer is 43.3 I’ll put the rest of the answers to the test when I’m done
Answered by Ummmmmm
That must be a really hard test if Ray has taken a whole year and still has yet to post the rest of the answers. Take your time, Ray, I guess...
Answered by Anonymous
HahahahHahh
Answered by The Helper
Here's the correct answers if they're still the same...
1. 151 in
2. 43.3 in
3. 1,661 cm2
4. Triangular pyramid
5. 346 m2
6. 98 ft3
7. 8 in x 10 in
8. It is eight times as great
9. 2,300 millimeters
Answered by Correct Answer
@The Helper is correct
Answered by Tinsley Bracken
thx bro
im really behind on math
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