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p=15cm ; l=8cm ; t=10cm
LP = 2[(p×l)+(p×t)+(l×t)]
= 2 [(15×8) + (15×10) + (8×10)]
= 2 [120+150+80] = 700cm^2
= 2 . (15 . 8 + 15 . 10 + 8 . 10)
= 2 . (120 + 150 + 80)
= 2 . (350)
= 700 CM²
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