6 b
60°
450
c
Find a, b, and c.
A. a = 12, b = 63.c = 36
B. a = 12, b = 12V3.c = 3 V6
C. a = 63,6 - 12, c = 6

A. a=12, b=63.c =36

Step-by-step explanation:

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

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