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The perimeter of a playground is 13 1/2. if it's breadth is 2 1/4 m .find its length |
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Answer» Mark as BRAINLIEST answer.Step-by-step EXPLANATION:→ perimeter of playground = 13 1/2→ 13 1/2→ (13×2+1)/2→ 27/2→ Breadth = 2 1/4→ (2×4+1)/4→ 9/4→ LENGTH = x→ Playground is a rectangle.→ So, Perimeter of rectangle.→ 2(l+b)→ 2(x/1+9/4) = 27/2→ 2(4x+9/4) = 27/2→ 8x + 18 / 4 = 27/2→ Cross multiply:→ (8x+18)(2) = (27)(4)→ 16x+36 = 108→ 16x = 108 - 36→ 16x=72→ x = 72/16→ x = 4.5→ Length is 4.5 |
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