Answer:
240cm^2
Step-by-step explanation:
A=(a+b/2)*h
(20+40/2)*8
(60/2)*8
30*8
240
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Verified answer
Answer:
240cm^2
Step-by-step explanation:
A=(a+b/2)*h
(20+40/2)*8
(60/2)*8
30*8
240