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motikmotik
3 years ago
14

I NEED HELP PLZ!!!!!!!!!! 35 POINTS

Mathematics
1 answer:
loris [4]3 years ago
3 0

Answer:

Step-by-step explanation:

As a review:  this is the Law of Sines:

   b            a

-------- = ---------

sin B      sin A

Using the Law of Sines will enable us to determine Angle A.  Once we know Angle A, we can determine Angle C.

From that point on, all of the angles are known, and there is sufficient info available to determine the length of side c using the Law of Sines.

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Check the picture below.

so we know the radius of the semicircle is 2 and the rectangle below it is really a 4x4 square, so let's just get their separate areas and add them up.

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