Analytical Geometry> If from a circular sheet of paper of radi...

If from a circular sheet of paper of radius 15cm a sector of 144 degree is removed and the remaining is used to make a conical surface, then the angle at the vertex will be

1) sin^(-1)(3/10)
2) sin^(-1)(6/5)
3) 2sin^(-1)(3/5)
4) 2sin^(-1)(4/5)

Ayush , 9 Years ago

Grade 11

1 Answers

Saurabh Koranglekar

Last Activity: 5 Years ago

Dear student

Please find the link attached

https://www.askiitians.com/forums/Analytical-Geometry/if-from-a-circular-sheet-of-paper-of-radius-15cm-a_159034.htm

Regards

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Analytical Geometry> If from a circular sheet of paper of radi...

If from a circular sheet of paper of radius 15cm a sector of 144 degree is removed and the remaining is used to make a conical surface, then the angle at the vertex will be1) sin^(-1)(3/10)2) sin^(-1)(6/5)3) 2sin^(-1)(3/5)4) 2sin^(-1)(4/5)

1) sin^(-1)(3/10)2) sin^(-1)(6/5)3) 2sin^(-1)(3/5)4) 2sin^(-1)(4/5)

Ayush , 9 Years ago

Saurabh Koranglekar

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If from a circular sheet of paper of radius 15cm a sector of 144 degree is removed and the remaining is used to make a conical surface, then the angle at the vertex will be

1) sin^(-1)(3/10)
2) sin^(-1)(6/5)
3) 2sin^(-1)(3/5)
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1) sin^(-1)(3/10)
2) sin^(-1)(6/5)
3) 2sin^(-1)(3/5)
4) 2sin^(-1)(4/5)