Question

3. Mrs Rai put up a rectangular signboard to warn people
about her dog. The length of the board was 1 m 25 cm. If the
perimeter was 4 m 50 cm, what was the breadth of the board?​

Answer 1

Length of rectangle = 2 m 25 cm=225 cm
breadth = 1 m 50 cm =150 cm.
perimeter of a rectangle =2(l+b)
=2(225+150)
=2(375)
perimeter of rectangle =750 cm = 7 m 50 cm.