Multiple choice

What is the area of the sector whose central angle is 90° and radius of the circle is 14 cm? उस सेक्टर का क्षेत्रफल क्या होगा जिसका केंद्रीय कोण 90° है और वृत्त की त्रिज्या 14 सेमी. है?

  1. 308 sq cm / वर्ग सेमी.

  2. 77 sq cm / वर्ग सेमी.

  3. 154 sq cm / वर्ग सेमी.

  4. 231 sq cm / वर्ग सेमी.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Area of sector = (θ/360°) × πr² = (90/360) × (22/7) × 14² = (1/4) × (22/7) × 196 = 154 sq cm. Option A (308) is the full circle area, B (77) is half the correct value, and D (231) is 3/4 of the circle area.

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