If the difference between the circumference and the radius of a circle is 37cm , Ο = 22/7, the circumference (in cm) of the circle is
(a) 154Β Β (b) 44Β Β (c) 14Β Β Β (d) 7
Last updated at Sept. 9, 2021 by
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Question 28 If the difference between the circumference and the radius of a circle is 37cm , π = 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 β Radius = 37 cm 2πr β r = 37 r (2π β 1) = 37 r Γ (2 Γ ππ/π β 1) = 37 r Γ (44/7 β 1) = 37 r Γ (44 β 7)/7 = 37 r Γ 37/7 = 37 r = 37 Γ 7/37 r = 7 cm Now, Circumference of Circle = 2πr = 2 Γ 22/7 Γ 7 = 2 Γ 22 = 44 cm So, the correct answer is (b)
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]
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