Question 2 In a circle of diameter 42cm ,if an arc subtends an angle of 60ยฐ at the centre where ๐ = 22/7,then the length of the arc is (a) 22/7 cm (b) 11 cm (c) 22 cm (d) 44 cm
Given
Diameter = 42 cm
โด Radius = 21 cm
Length of Arc = ๐ฝ/๐๐๐ร ๐๐ ๐
= (60ยฐ)/(360ยฐ) ร 2 ร22/7 ร 21
= 1/6 ร 2 ร 22/7 ร 21
= 22 cm
So, the correct answer is (c)

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CBSE Class 10 Sample Paper for 2022 Boards - Maths Basic [MCQ]

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.