Question

Find the perimeter of a rectangle whose width is 30cm and diagonal 50cm.

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Answer 1

Answer: 140cm

P=2(l+w)

P=2w+2d2﹣w2=2·30+2·502﹣302=140cm

Answer 2

P=140cm

Explanation:

P=2(l+w)

d=w2+l2

Solving forP

P=2w+2d2﹣w2=2·30+2·502﹣302=140cm

Hope This Kind of Helps