Find the area of the cardboard required to make a closed box of length 25 cm, 0.5 m and height 15 cm.
Given,
Dimensions of closed box = 25 cm×0.5 m× 15 cm = 25 cm ×50 cm × 15 cm
So,
Area of cardboard required = 
= 
7
Find the area of the cardboard required to make a closed box of length 25 cm, 0.5 m and height 15 cm.
Given,
Dimensions of closed box = 25 cm×0.5 m× 15 cm = 25 cm ×50 cm × 15 cm
So,
Area of cardboard required =
=