1 Answer

Graffic · Answer 1 · 2018-11-30T06:00:39+0000

length = l
width = 1/3 of length = l/3

perimeter = 2(l + l/3)
Answer is option B

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2(l+ l/3) = 56
⇒ 8l/3 = 56
⇒ l = 3*56/8
⇒ l = 21 inch
width = 21/3 = 7inch

Area = 21*7 inch² = 147 inch²

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