Question

If each edge of a cube is increased by 50%, the percentage increased in its surface area is : ​

Answer 1

Step-by-step explanation:

Let a edge be 2cm

• increase 50%

New edge=2+1=3cm

TSA of cube=6l^2

Old TSA=6×2^2

=6×4=24cm

New TSA =6×3^2

=6×9=54cm

Difference between old and new TSA=30cm

now do Difference/old TSA×100%

=30/24×100%

=125%