SOLUTION: In circle O, measure of HT=45 and the length of the radius is 8cm. What is the area of the shaded region in terms of π?

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Question 1175508: In circle O, measure of HT=45 and the length of the radius is 8cm. What is the area of the shaded region in terms of π?
Answer by ikleyn(52754) About Me  (Show Source):
You can put this solution on YOUR website!
.

From your post,  I don't know and can not know what the shaded region is.

I only can guess,  which is not a good style in doing Math.


By the way,  the tongue is given to you to express your thoughts;
and more concretely,  in this case to describe by your own words what the shaded region is.


Ok,  I will assume that the shaded region is the segment of the circle with the central angle of  45°.

Then this sector area is   1%2F8   of the circle area.

So, you calculate the circle area   A = pi%2Ar%5E2   (is this formula familiar to you ?)
and then take   1%2F8   of it as your answer.

In terms of   pi,  the answer is    %28pi%2Ar%5E2%29%2F8 = %28pi%2A8%5E2%29%2F8 = 8%2Api.

Solved.

Is everything clear to you from my explanation ?