Answer:
b is answers for the question and
Step-by-step explanation:
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600 square mm
there is a total of 12 5 by 5 squares, and 6 5 by 10 rectangles. 12*25=300 and 6*50=300 so 300+300=600
Angles 5 & 8 will be the same as the top.
Angles 1, 4, 5 and 8 equal the same.
Angle 8 = 115°