Answer:
Explanation:
A1=BH
=15mm×7mm
=300mm2
A2=BH
=15mm×5mm
=75mm2
A3=BH
=8mm×5mm
=40mm2
A1+A2+A3=Atotal
300mm2+75mm2+40mm2=Atotal
415mm2=Atotal
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