IMC 2023 Grade 3 — ROUND 1 Question 5

Question 5

The figure is made up of 5 small identical rectangles. If the perimeter of the big rectangle is 48 cm, find the area of the big rectangle.

Question illustration

$540\text{ cm}^2$
$27\text{ cm}^2$
$81\text{ cm}^2$
$135\text{ cm}^2$