Example 3 - Chapter 3 Class 11 Trigonometric Functions

Last updated at August 11, 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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Transcript

Example 3 Find the radius of the circle in which a central angle of 60ยฐ intercepts an arc of length 37.4 cm (use ฯ€ = 22/7 ) Given ๐‘™ = 37.4 cm and ฮธ = 60ยฐ Converting angle into radians We know that Radian measure = ๐…/๐Ÿ๐Ÿ–๐ŸŽ ร— Degree measure = ๐œ‹/180 ร— 60 = ๐…/๐Ÿ‘ radian Now, ฮธ "= " ๐‘™/๐‘Ÿ " " ๐’“ = ๐’/๐œฝ = (๐Ÿ‘๐Ÿ•. ๐Ÿ’)/(๐…/๐Ÿ‘) = (37. 4)/(22/(7 ร— 3)) = 35.7 cm

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