a cone of maximum volume is cut out from a 40 cm long wooden cube . Calculate the volume of the cone .
Answers
Answer:
Step 1
40 cm long wooden cube means that the side of the cube is 40cm.
Step 2
A cone having the max. Volume. will have it''s Base diameter as 40 cm and height 40 cm.
Step 3
Vol. of cone = [1/3]\pi[(r^2)×h]
Vol of the cone =(1/3)×(22/7)×(20×20)×40
=16755.16
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Question :---
a cone of maximum volume is cut out from a 40 cm long wooden cube . Calculate the volume of the cone . ?
Concept used :----
when cone is cut out from cube, than side of cube becomes height of cone and as well as diameter of cone .
Solution :----
it is given that height of cube is 40cm.
→ So, Height of cone = 40cm
→ Radius of cone = 40/2 = 20cm .
putting values in formula now,
→ Volume of cone = 1/3 π * r² * h
→ Volume = 1/3 * π * (20)² * 40
→ Volume = (16000π/3) cm³
Hence, volume of Required cone will be (16000π/3)cm³ .