What is the area (in sq cm) of a rectangle of perimeter 90 cm and breadth 20 cm?
Answer & explanation
Correct answer: option 1
Perimeter of rectangle = 2 (l + b)
90 = 2 (l + 20)
l = \(\frac{90}{2}\) – 20 = 25 cm.
area = l × b = 25 × 20 = 500 cm2
What is the area (in sq cm) of a rectangle of perimeter 90 cm and breadth 20 cm?
Correct answer: option 1
Perimeter of rectangle = 2 (l + b)
90 = 2 (l + 20)
l = \(\frac{90}{2}\) – 20 = 25 cm.
area = l × b = 25 × 20 = 500 cm2