Question

3. The surface area of a cube is directly
proportional to the square of its side.
The surface area of a cube of side
5 cm is 150 cm2. Find the side of a
cube with surface area 600 cm2.

Answer 1

Step-by-step explanation:

according to ques

a=k×side²

case 1

side=5cm

area=150cm²

so, 150=k×(5)²

150/25=k

k=6

case2

area=600cm²

so area=6×side²

600=6×side²

100=side²

side=10cm