Question

A house owner wants to cut a marble slab 240cm long and 120cm wide to 8 pieces of same size, but with least perimeter. Which of the following can be the size of the marble pieces cut out?

Answer 1

Answer:

90cm

Step-by-step explanation:

$parimeter \: of \: whole \: marble \: slap$

$2(240 + 120) \\ = 2 \times 360$

$= 720$

Least parimeter of each small marble =

$\frac{720}{8cm} = 90cm$