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An isosceles triangle with a base of 0.4 m and an altitude of 0.3 m is revolved about a line through the vertex and perpendicular to the base. What is the volume of the solid generated by the revolving triangle?

Asked by Topperlearning User 17th October 2017, 12:53 PM
Answered by Expert

The solid generated by revolving the triangle is a cone with height (h) = 0.3 m and radius (r) = 0.4 m

 begin mathsize 12px style straight V space equals space 1 third πr squared straight h end style

  begin mathsize 12px style straight V equals 1 third straight pi cross times 0.4 cross times 0.4 cross times 0.3 equals 0.05028 space cm cubed end style

Answered by Expert 17th October 2017, 2:53 PM
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