Question

the perimeter of rectangle with width 5 cm and diagonal 13 cm is


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Answer 1

Answer:

34cm

Step-by-step explanation:

${l}^{2} + {b}^{2} = {d}^{2} \\ {l}^{2} = {13}^{2} - {5}^{2} \\ = > {l}^{2} = 169 - 25 = 144 \\ = > l = 12cm$

$perimeter \: of \: rectangle \\ = 2(l + b) = 2(12 + 5) = 2 \times 17 = 34cm$