Question

Find the percentage increase in the surface area of a cube if each side is trebled

Answer 1

Answer:

Step-by-step explanation:

Let us assume the side of a cube is 10cm as it is gven as percentages we can assume it as 10 or any number u want but if it is multiples of 10 the calculation would be easier

now area of the cube is 4*side²≈4*100≈400

but if side is tripled i.e., it has become 30

now the area is 4*side²≈4*900≈3600

now the difference in two areas≈3600₋400≈3200

percentage increase is≈3200/400≈800