Tuesday

October 21, 2014

October 21, 2014

Posted by **Chase** on Tuesday, April 23, 2013 at 9:06pm.

- Math Geo -
**rbowh**, Tuesday, April 23, 2013 at 9:08pmC = pi * d

272.2 = pi * d

272.2/pi = d

use 3.14 for pi

- Math Geo -
**Ms. Sue**, Tuesday, April 23, 2013 at 9:14pmC = pi * 2r

272 = 3 * 2r

272 = 6r

272/6 = r

45 = r

- Math Geo Ms Sue -
**Chase**, Tuesday, April 23, 2013 at 9:18pmMs 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 ?

- Math Geo -
**Chase**, Tuesday, April 23, 2013 at 9:19pmhahah never mind I got it. Estimation!

So 43.3 in. is the answer. Forgot. Thanks.

- Math Geo -
**Ms. Sue**, Tuesday, April 23, 2013 at 9:22pmUgghh!

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

**Answer this Question**

**Related Questions**

Math 7 - NYS Math Exam Review Help! - 19. The circumference of the circle below ...

math - If the number of square inches in the area of a circle is equal to the ...

math - If the number of square inches in the area of a circle is equal to the ...

MATH HOMEWORK - Find the circle circumference and circle area with a circles ...

c programming - To see how the four steps of the software development procedure ...

c# programming - To see how the four steps of the software development procedure...

triggg - Suppose a circle has a radius of 4.5 inches. If you double the radius ...

Math - The circumference of this circle is approximately 66 inches what is the ...

Math - 23.What is the approximate circumference of a circle with a radius of 6 ...

Math - Circle C has radius 4 inches. Circle D had radius 9 inches. These two ...