Question

the perimeter of a rectangle is 84. Its shorter side has a length of 3. state the length of its longer side

Answer 1

Step-by-step explanation:

Given:length =24 cm

perimeter of rectangle=2×(l+b)

⇒84=2×(24+b)

⇒42=24+b

∴b=42−24

Hence b=18 cm