Find the area of the cardboard required to make a closed box of length

1.	Find the area of the cardboard required to make a closed box of length 25 cm, 0.5 m and height 15 cm.
Answer» Given details are, Dimensions of closed box = 25cm × 0.5m × 15cm = 25cm × 50cm × 15cm We know that, Area of cardboard required = 2 (lb + bh + hl) cm² = 2 (25×50 + 50×15 + 15×25) = 2 (1250 + 750 + 375) = 2 (2375) = 4750 cm²

Find the area of the cardboard required to make a closed box of length 25 cm, 0.5 m and height 15 cm.

Answer»

Given details are,

Dimensions of closed box = 25cm × 0.5m × 15cm

= 25cm × 50cm × 15cm

We know that,

Area of cardboard required = 2 (lb + bh + hl) cm²

= 2 (25×50 + 50×15 + 15×25)

= 2 (1250 + 750 + 375)

= 2 (2375)

= 4750 cm²