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SSC Selection Post 2024 PYQ — Question 55

SSC Selection Post - Graduation Level - 20 Jun 2024 Shift 3 • Quantitative Aptitude • Q55

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The area of a sector of a circle is 88 cm2  and the angle  of sector is 36°. Find the radius (in cm)of the circle [Use π=227\pi =\frac{22}{7}]

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Correct answer: D

Explanation

The correct answer is Option 4 i.e. 270 2\sqrt{70}.

Area of sector = θ360×πr2{\theta \over 360} \times \pi r^2

⇒ {36/360} × {22/7} × r2 = 88

⇒ r2 = 280

⇒ r = 270 2\sqrt{70}