Answer:
Formula used:
The surface area of cube = 6 side2
Calculation:
According to the question,
Let the side of the cube be x
Each side of the cube increased by 50%.
= x(100 + 50)/100 = 1.5x
The surface area of the cube
⇒6x²
The new surface area of the cube (side = 1.5x)
⇒ 6 × 2.25x²
Increase percentage in the surface area
⇒((6 x 2.25 x²-6x²)/6 x² }× 100
⇒ 125%
The percentage increase in the surface area is 125%.