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Linear Algebra
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OpenStudy (anonymous):
Which expression can be used to find the area of a circle with a diameter of 80 cm? A. π · 402 B. π · 160 C. π · 80 D. π · 40
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OpenStudy (anonymous):
i am having trouble need help
OpenStudy (anonymous):
what is 40 squared?
OpenStudy (anonymous):
i dont know
OpenStudy (anonymous):
40 times 40=?
OpenStudy (anonymous):
i think so i am not good in math
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OpenStudy (anonymous):
ok lol... are all your choices correct? because the answer is not one of the choices
OpenStudy (anonymous):
lol
OpenStudy (anonymous):
A = (pi / 4)(diameter)(diameter) = (pi/4)(diameter)^2
OpenStudy (anonymous):
The answer is 'c' as the formula of area of circle is pai d
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