Example 3 - Chapter 3 Class 11 Trigonometric Functions

Last updated at August 17, 2026 by

Example 3 - Find radius in which a central angle of 60 - Examples - Examples

part 2 - Example 3 - Examples - Serial order wise - Chapter 3 Class 11 Trigonometric Functions

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Example 3 Find the radius of the circle in which a central angle of 60Β° intercepts an arc of length 37.4 cm (use Ο€ = 22/7 ) Given 𝑙 = 37.4 cm and ΞΈ = 60Β° Converting angle into radians We know that Radian measure = 𝝅/πŸπŸ–πŸŽ Γ— Degree measure = πœ‹/180 Γ— 60 = 𝝅/πŸ‘ radian Now, ΞΈ "= " 𝑙/π‘Ÿ " " 𝒓 = 𝒍/𝜽 = (πŸ‘πŸ•. πŸ’)/(𝝅/πŸ‘) = (37. 4)/(22/(7 Γ— 3)) = 35.7 cm

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