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CBSE Class 11-science Answered

Find the length of an arc of a circle of radius 5cm subtending a central angle measuring 15 degree 
Asked by yashwantjain12 | 02 Oct, 2015, 07:48: PM
answered-by-expert Expert Answer
W e space k n o w space t h a t space l equals r theta R a d i u s space o f space t h e space c i r c l e comma space r equals 5 space c m theta space i s space t h e space a n g l e space s u b t e n d e d space a t space t h e space c e n t r e rightwards double arrow theta equals 15 degree T h e space a r c space l e n g t h comma space l equals 5 cross times 15 degree space space space space space space space space space space space space space space space space space space space space space space space space space space equals 5 cross times 15 degree cross times fraction numerator straight pi over denominator 180 degree end fraction space space space space space space space space space space space space space space space space space space space space space space space space space space equals 5 cross times straight pi over 12 space space space space space space space space space space space space space space space space space space space space space space space space space space equals fraction numerator 5 straight pi over denominator 12 end fraction space c m
Answered by Vimala Ramamurthy | 03 Oct, 2015, 10:11: AM

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CBSE 11-science - Maths
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