Question

A matchbox is 4cm long, 2.5cm broad and 1.5cm in height. Its outer sides are to be covered exactly with craft paper. How much paper will be required to do so?​

Answer 1

Answer:

39.5 cm² area of paper will be required.

Step-by-step explanation:

Length, l = 4 cm

Breadth, b = 2.5 cm

Height, h = 1.5 cm

Total surface area = 2(lb + bh + hl)

=2(4 × 2.5 + 2.5 × 1.5 + 1.5 × 4)

=2(10 + 3.75 + 6)

=2(19.75)

= 39.5 cm²