The breadth of a rectangle is four times of its length. If the area of the rectangle is 1764, then what is the breadth of the rectangle ?
Answer & explanation
Correct answer: option 3
We know that,
Area of rectangle = length × breadth
The area of the rectangle = 1764 cm2
Let the breadth of the rectangle be a then its length is 4a
Area = length × breadth
= 4a × a = 1764
= a2 = 441
= a = 21
Length of the rectangle = 4 × 21 = 84 cm