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Mathematics 37 Online
OpenStudy (anonymous):

find the area of each sector to the nearest tenth. 225 degree & 8cm

OpenStudy (anonymous):

Is the 8cm the radius? If so then the area of the whole circle is 64 so multiply that by the amount you are interested in (225/360): 64(225/360) = 40.0 square cm.

OpenStudy (anonymous):

how did you get 64

OpenStudy (anonymous):

I did forget to π there, sorry. I meant 64π so the answer is 40π. I got the 64π because the area of a circle is πr^2 where r is the radius of the circle.

OpenStudy (anonymous):

fnd the missing side lenghts. leave your answer as radicals in the simpliest form. it is a 30, 60, 90 triangle with the base of 3

OpenStudy (anonymous):

Which side are you considering the base? If it's the side between the 60 and the 90 degree sides then the other sides are 6 and 3√3

OpenStudy (anonymous):

it's the side between the 30 and 60

OpenStudy (anonymous):

then in that case the other sides are 3/2 and (3√3)/2

OpenStudy (anonymous):

find the measure of the arc or central angle indicated. assume that lines which appear to be diameters are actual diameters.

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