Question 12 Marks
The sides of a rectangle are in the ratio 5 : 4 and its perimeter is 90cm. Find its length and breadth.
Answer
View full question & answer→Let the length and breadth of the rectangle be 5x and 4x respectively.
$\therefore$ 2(5x + 4x) = 90
⇒ 18x = 90
⇒ x = 5
Length of the rectangle is (5 × 5) = 25cm and breadth = (4 × 5) = 20cm.
$\therefore$ 2(5x + 4x) = 90
⇒ 18x = 90
⇒ x = 5
Length of the rectangle is (5 × 5) = 25cm and breadth = (4 × 5) = 20cm.
