Question

if each side of a cube is increase d by 50%, find the % increase in the Total surface Area​

Answer 1

Step-by-step explanation:

let the side of cube be a then surface area of cube= 6a^2

when a is increased 50% then side of cube =150%of a

hence surface area of cube=6×150%a×150%a

=6×3/2a×3/2a

6a^2×9/4

total increase in surface area={(6a^2×9/4)/6a^2}×100-100%

=9/4×100-100%

9×25-100%

=225-100%

=125%.