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Mathematics 17 Online
OpenStudy (gabbyalicorn):

What is the approximate area of the circle? Use π ≈ 3.14. A. 32.7 square centimeters B. 65.2 square centimeters C. 108.2 square centimeters D. 339.6 square centimeters

Mehek (mehek14):

where's the circle?

OpenStudy (gabbyalicorn):

its coming

OpenStudy (gabbyalicorn):

Mehek (mehek14):

so just use the formula and put 10.4 for the radius

OpenStudy (is3535):

The question does say "approximately", so the radius is about 10, which means the square is about 100,and the answer should be a little above 314. Since nothing else even comes close, the answer is D, without doing all the math.

Mehek (mehek14):

\(π10^2\)

OpenStudy (gabbyalicorn):

3.14 x 10.4 is 32.656

Mehek (mehek14):

\(10^2\)

OpenStudy (is3535):

can i telll her the answer

OpenStudy (gabbyalicorn):

9.8596

Mehek (mehek14):

you forgot the exponent

OpenStudy (gabbyalicorn):

i did \[10\times10 = 100 then 3.14\times100\]

OpenStudy (is3535):

what do you think @gabbyalicorn

Mehek (mehek14):

100*3.14 = ?

OpenStudy (gabbyalicorn):

ya ^

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