Question

each side of square flower bed is 3m 80cm long.it is extended by digging a strip 50 cm ide all around it.find the area of the enlarged flower bed and also the increase in the area of flower bed.

Answer 1

Solution:-
Each side of flower bed = 3.8 m
Area = 3.8 × 3.8
Area of flower bed before extension = 14.44 sq m
If it is extended by digging a strip of 50 cm wide all around it, then the new side will be = 3.8 + 1.0 = 4.8 m
Area of the flower bed after extension = 4.8 × 4.8 
Area of enlarged flower bed = 23.04 sq m
Increase in the area of flower bed = 23.04 - 14.44
= 8.6 sq m
Answer.

Answer 2

area of Small square
side=3.8m
area=3.8m*3.8m
=14.44sq.m


area of large square
side=4.8m
area=4.8*4.8
=23.04sq.m

increase in the area flower bed
=23.04m-14.44m
=8.6sq.m