5) 4 1If an edge of a cube is doubled, how many times its surfacearea

1.	5) 4 1If an edge of a cube is doubled, how many times its surfacearea will be increased?5.(A) Twice(B) Thrice(c) Four times (D) Six times
Answer» Let the length of the edge of the cube be 'x' cmTotal surface area = 6x2cm2 Increased length of the edge = 2xTotal surface area = 6(2x)2cm2= 24x2cm2 If the edge of the cube is doubled surface area of the cube increases by 4 times

5) 4 1If an edge of a cube is doubled, how many times its surfacearea will be increased?5.(A) Twice(B) Thrice(c) Four times (D) Six times

Answer»

Let the length of the edge of the cube be 'x' cmTotal surface area = 6x2cm2

Increased length of the edge = 2xTotal surface area = 6(2x)2cm2= 24x2cm2

If the edge of the cube is doubled surface area of the cube increases by 4 times