If the difference between the circumference and the radius of a circle is 37cm , ฯ = 22/7, the circumference (in cm) of the circle is
(a) 154ย ย (b) 44ย ย (c) 14ย ย ย (d) 7
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CBSE Class 10 Sample Paper for 2022 Boards - Maths Basic [MCQ]
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CBSE Class 10 Sample Paper for 2022 Boards - Maths Basic [MCQ]
Last updated at March 22, 2023 by Teachoo
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Question 28 If the difference between the circumference and the radius of a circle is 37cm , ๐ = 22/7, the circumference (in cm) of the circle is Given that Difference between circumference and the radius of a circle is 37cm Thus, Circumference โ Radius = 37 cm 2๐r โ r = 37 r (2๐ โ 1) = 37 r ร (2 ร ๐๐/๐ โ 1) = 37 r ร (44/7 โ 1) = 37 r ร (44 โ 7)/7 = 37 r ร 37/7 = 37 r = 37 ร 7/37 r = 7 cm Now, Circumference of Circle = 2๐r = 2 ร 22/7 ร 7 = 2 ร 22 = 44 cm So, the correct answer is (b)