Find the length of the diagonal of a rectangle whose length is 15 cm and breadth is 8 cm

Let ABCD be a rectangle with AB = 15 cm and BC = 8 cm

Diagonal is AC

We know that, in a rectangle all the angles are 900

Hence,

By Pythagoras theorem

AB2 + BC2 = AC2

152 + 82 = AC2

AC2 = 225 + 64

AC2 = 289

Taking square root on both sides

AC = √289

AC = 17 cm

Therefore, the length of the diagonal is 17 cm

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