Q8 of 58 Page 17

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

ABCD is a rectangle



In ΔABC using pythagorous theorem,


AC2 = AB2 + BC2


AC2 = 122 + 52


AC2 = 144 + 25


AC2 = 169


AC =


AC = 13cm


Therefore length of diagonal is 13cm.


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