Question

What will happen to the volume of a cuboid if it is 1. Length is doubled, height is same and breath is halved?
2.length is doubled, height is doubled and breath is same.

Answer 1

let the dimensions be

L=5
B=6
H=4

normal Volume= 5*6*4
=120m^3

1. V=l*b*h
=10*3*4
=120m^3

volume remains same

2. V= 10*6*8
=480m^3

the volume becomes 4 times the normal.

Answer 2

Answer:

L=5

B=6

H=4

Normal volume=5×6×4

=120m^3

When length and breadth is double and height is same then

L=2×5=10

B=2×6=12

H=4

V=L×B×H

=10×12×4

=480m^3

So, The volume becomes 4 times the original.