Sunday

December 21, 2014

December 21, 2014

Posted by **Katherine** on Wednesday, March 17, 2010 at 7:57pm.

- math -
**Ms. Sue**, Wednesday, March 17, 2010 at 8:05pmYou need to find the area of both circles. Then subtract the area of the inner circle from the outer circle.

A = pi * r^2

A = 3.14 * 15^2

A = 3.14 * 225

A = 706.5 square feet

A = 3.14 * 21^2

A = 3.14 * 441

A = 1384.74 square feet

1384.74 - 706.5 = ?

**Answer this Question**

**Related Questions**

math - a worker in a city park needs to cover a circular path around the outside...

Math - Mr Townes created a 2foot wide garden path around a circular garden. The ...

MaTh - need help with word problem The Parks Department is planting a circular ...

Geometry - Jose wants to put fencing around his rectangular garden. His garden ...

math - John wants to put a circular garden in his back yard. The garden has a ...

math - John wants to put a circular garden in his back yard. The garden has a ...

Math - P = 2l + 2w A = lw P = 4s A = s2 C = ðd A = ðr2 Use 3.14 for ð. Lawrence ...

Math - Serena has a square-shaped garden. She wants to put a fence around the ...

MATH: Pre-Cal/Trig - The length of a rectangular flower garden is 6 more feet ...

geometry - Serena has a square-shaped garden. She wants to put a fence around ...