Surface area of the four walls of a cube having side length 'a' is given by:
Question 55
State whether the following statement is true or false:
The surface area of a cuboid formed by joining face-to-face 3 cubes of side x is 3 times the surface area of a cube of side x.
Question 16
The area of a square having each side x is
(a) x×x
(b) 4x
(c) x+x
(d) 4+x
Find the approximate change in total surface area of a cube of side x metre caused by increase in side by 1%.