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bearhunter [10]

2 years ago

7

NEED HELP NOW 25 POINTS!!!!!!

2 answers:

antiseptic1488 [7]2 years ago

7 0

4) 62.8 cm^2
5) It is quadrupled

sergij07 [2.7K]2 years ago

6 0

First you have to find the area of the smaller inner circle:
A=<span>πr^2
A=</span><span>π4^2
A=</span><span>π16
A= 3.14 x 16
A= 50.24

Then, you have to find the area of the whole circle:
</span>A=πr^2
A=π6^2
A=π36
A= 3.14 x 36
A= 113.04
<span>
Now, you simply subtract 50.24 from 113.04 to get 62.8

</span>

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bearhunter [10]

Http://www.jiskha.com/display.cgi?id=1412206557 here this should help

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elena-14-01-66 [18.8K]

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