What is the area (in $cm^2$) of a rectangle having perimeter 48 cm and breadth 10 cm ?
Answer & explanation
Correct answer: option 1
Perimeter of a rectangle = 2(length + breadth)
⇒ 48 = 2(length + 10)
⇒ 24 = length + 10
⇒ Length = 24 - 10 = 14 cm
Area of rectangle = length × breadth = 14 × 10 = 140 cm2