Question

what will happen to the total surface of area of a cube whose edge is reduced to half​

Answer 1

Answer:

total surface area is decreased by 4.5

Step-by-step explanation:

let the edge be x unit

total surface area of cube=6×x square.......1

when edge is reduced to half then

edge=1/2x

total surface area=6×(1/2x)^2

=6×1/4x

=3/2x

=1.5x unit^2..........2

by subtracting 2 from 1

we get

=6x unit^2-1.5x unit^2

=4.5 unit ^2