The length and breath of rectangle is 12cm and 5cm respectively. Find the length of diagonals.
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Solution
Since it is a rectangle, the diagonals will be of equal in length. For the figure as shown, l=12cm, w=5cm Applying pythagoras theorem in the figure, d2=w2+l2 d2=52+122 d2=25+144 d2=169 Taking square root both sides, Length of diagonals = d = 13cm