Vertex angle - cone

The rotating cone has a height of 72 cm and an angle at the top of 72°. Determine the volume of the sphere.

Correct answer:

V =  2952658.1248 cm3

Step-by-step explanation:

h=72 cm φ=72° rad=72° 180π =72° 1803.1415926 =1.25664=2π/5  cos φ/2 = h:r r=h/cos(φ/2)=72/cos(1.2566/2)88.9969  V=34 π r3=34 3.1416 88.99693=2952658.1248 cm32.953106 cm3



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algebrasolid geometryplanimetricsgoniometry and trigonometryUnits of physical quantitiesGrade of the word problem

 
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