helelelelpp me for brainlist you get right brainlist
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Answer: B
Step-by-step explanation:
First find the area of the rectangle:
A = lw
A = 6*12 = 72 mm^2
Find the area of the semi circle:
A = (pi*r^2)/2
A = (3.14)*(3^2)/2 = 14.13 mm^2
Total area = 72 + 14 = 86 mm^2