Area of a sector of a circle is 1/6 to the area of circle. Find the degree measure of its minor arc.

(a) 90°   (b) 60°  (c) 45°   (d) 30°

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  1. Class 10
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Transcript

Question 38 Area of a sector of a circle is 1/6 to the area of circle. Find the degree measure of its minor arc. (a) 90ยฐ (b) 60ยฐ (c) 45ยฐ (d) 30ยฐ Given that Area of sector = ๐Ÿ/๐Ÿ” ร— ๐…๐’“^๐Ÿ Putting formula ๐œฝ/(๐Ÿ‘๐Ÿ”๐ŸŽยฐ) ร— ๐…๐’“^๐Ÿ = ๐Ÿ/๐Ÿ” ร— ๐…๐’“^๐Ÿ ๐œƒ/(360ยฐ) = 1/6 ฮธ = (360ยฐ )/6 ฮธ = 60ยฐ So, the correct answer is (b)

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.