Question

Find the length of the diagonal of a rectangle whose sides are 12cm and 5 cm ?

Answer 1

let the diagonal be d
By Pythagoras theorem
$12 {}^{2} + 5 {}^{2} = d {}^{2}$
$144 + 25 = d {}^{2} \\ 169 = d {}^{2}$
now
$d {}^{2} = 169 \\ d = \sqrt{169} \\ d = 13$
diagonal is 13. Hope it helps mark it brainliest plz plz plz plz

Answer 2

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