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nadya68 [22]
3 years ago
14

I need help with this??

Mathematics
1 answer:
olga55 [171]3 years ago
8 0
A = 1/2h(b1 + b2)
A = 1/2*9.28(10.5 + 21.1)
Using calculator
A = 146.624 square cm
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4 0
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