Answers

2015-06-12T14:48:09+05:30
Let breadth be x m
So, length = 2x m

So, 2*4*(2x+x) = 120
or, 3x = 15
or, x = 5

So, area of floor = 5*(2*5)m2 = 50m2
8 3 8
2015-06-13T22:26:26+05:30
We all know that area=l×b
Given
area of four walls=120 m^2
l=2b
height=4 m
to find: area of floor

2b×b=120
2b^2=120
b^2=100
b=10
l=2b=20
area of floor=b×h
=10×4
=40m^2
1 1 1