Question 70

The diagonal of a rectangle is 20 cm. If its breadth is 12 cm, then what will be its length?

Solution

The diagonal of a rectangle is 20 cm. If its breadth is 12 cm.

We know that (diagonal of a rectangle)$$^2 = (length)^2+(breadth)^2$$

$$(20)^2 = (length)^2+(12)^2$$

$$400 = (length)^2+144$$

$$(length)^2 = 400-144$$

$$(length)^2 = 256$$

length of rectangle = 16 cm

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