What will be the diameter of a circle having area equal to that of a square of side 2.0 m?2.0 m भुजा वाले वर्ग के क्षेत्रफल के समान क्षेत्रफल वाले एक वृत्त का व्यास क्या होगा?

1. A~ 1.256 m
2. B~ 2.257 m
3. C~ 0.88 m
4. D~ 2.718 m

Pick an option to check yourself, or open the answer below.

Show answer & explanation

Correct answer: B. ~ 2.257 m

Explanation

Area of the square = 2.0 × 2.0 = 4 m². For the circle, πr² = 4, so r² = 4 ÷ 3.1416 = 1.273 and r = 1.128 m. Diameter = 2r = ≈ 2.257 m.वर्ग का क्षेत्रफल = 2.0 × 2.0 = 4 m²। वृत्त के लिए πr² = 4, अतः r² = 4 ÷ 3.1416 = 1.273 और r = 1.128 m। व्यास = 2r = ≈ 2.257 m।