Question

find the perimeter of the rectangular flower bed which is 7 M 10 cm long and 3 M 20 CM board

Answer 1

perimeter of rectangle =2 ( l + b )=2(7.10+3.20)m= 2× 10.30m = 20.60m= 20m 60cm

Answer 2

1 meter = 100 cm
7 meter = 700 cm
total cm = 710 cm

1 m = 100 cm
3 m = 300 cm
total cm = 320 cm

perimeter of rectangle = 2 ( l +b )
2 ( 710 + 320 )
2( 1030 )
2 × 1030
2060 ans

I hope I am right