Wednesday

April 23, 2014

April 23, 2014

Posted by **tatyana** on Wednesday, March 13, 2013 at 9:17am.

What is the area of circle B?

- math -
**Reiny**, Wednesday, March 13, 2013 at 11:11amareas of circles are proportional to the square of their radii

so

49/area of B = r^2/(3r)^2 = 1/9

area of B = 9(45) or 405 cm^2

**Related Questions**

Updated Math Question - The radius of circle A is 9 times greater than the ...

8th grade math - circle A has a raduis that is twice the length og the raduis of...

Math - The radius of circle A is 9 times greater than the radius of circle B. ...

math...2 word problems - Two questions: (1) In a class every boy is friends with...

math - How do areas of two parallelgrams compare when the dimensions of one are ...

Math - The combinated permeter of a circle and a squar is 16 find the dimensions...

Math - Which of the following dimensions of a circle is always smaller than the ...

Math - Cindy has two fourths of a circle and three tenths of a circle. What does...

Algebra - Write a polynomial for the area between two concentric circles if the ...

8th grade math - The radius of circle M is 3 times the radius of circle P. If ...