The area of a rectangle is 216 m2 and its length is 6 times of its breath. The perimeter of the rectangle is:-
Answer & explanation
Correct answer: option 4
Length : Breath = 6 : 1
Area of rectangle = l × b = 6R × 1R = 6R2 = 216
1R = 6
Now,
Perimeter = 2 (l + b) = 2 (7R) = 2 (42) = 84 cm