What is the area (in sq cm) of a rectang

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Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Mensuration: 2D

Question:

What is the area (in sq cm) of a rectangle of perimeter 90 cm and breadth 20 cm?

Options:

500

400

250

450

Correct Answer:

500

Explanation:

Perimeter of rectangle = 2 (l + b)

90 = 2 (l + 20)

l = $\frac{90}{2}$ – 20 = 25 cm.

area = l × b = 25 × 20 = 500 cm²