Answer:
1 - 2. A = L x W
= 8m x 3m
A = 26m²
3 - 4. A= W x sides
= 12 x sides
A = 48cm²
5 - 6. A = L x W
= 4m x 15m
A = 60m²
7 - 8. A = B x H
= 25 m x 12 m
A = 300 m²
9 - 10. A = ( b1 x b2 ) x h
= ( 6cm x 14cm ) x 5cm
= 84cm x 5cm
A = 420cm²
Step-by-step explanation:
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