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NeTakaya
3 years ago
7

A circular rug has an area of 32.15

align="absmiddle" class="latex-formula">. What is the diameter of the rug, to the nearest tenth of a foot? Plz show work and explain.
A. 8 feet
B. 16.1 feet
C. 3.2 feet
D. 6.4 feet
Mathematics
1 answer:
Oxana [17]3 years ago
5 0

Diameter is twice the radius.  A=πr^2.

First, solve for r:

32.15=πr^2

<em>*Divide both sides by </em>π*

10.2337=r^2

<em>*Take the square root of both sides*</em>

3.199=r

Multiply the radius by 2:

3.199*2=6.398

D. 6.4 feet

Hope this helps!!

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