The area of a rectangle is 729 m2 a

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

The area of a rectangle is 729 m² and its length is 9 times of its breath. The perimeter of the rectangle is:-

Options:

100 cm

180 cm

188 cm

182 cm

Correct Answer:

180 cm

Explanation:

Length : Breath = 9 : 1

Area of rectangle = l × b = 9R × 1R = 9R² = 729

1R = 9

Now,

Perimeter = 2 (l + b) = 2 (10R) = 2 (90) = 180 cm