A right circular cone of slant height 10 in. has a radius of 4 in. Find the angle of the sector of a circle of radius 10 in. which area is equal to the lateral area of the cone.

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)
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Chapter7: Length And Length-related Variables In Engineering
Section: Chapter Questions
Problem 42P
Question

A right circular cone of slant height 10 in. has a radius of 4 in. Find the angle of the sector of a circle of radius 10 in. which area is equal to the lateral area of the cone.

 

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