Circular cone of height 15 cm and volume 5699 cm3 is at one-third of the height (measured from the bottom) cut by a plane parallel to the base. Calculate the radius and circumference of the circular cut.

Correct answer:

r =  12.7 cm
o =  79.79 cm

Step-by-step explanation:

V=5699 cm3 h=15 cm  V=31 π r02 h  r0=π h3 V=3.1416 153 569919.0476 cm  r=32 r0=32 19.0476=12.7 cm
o=2π r=2 3.1416 12.6984=79.79 cm

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Showing 3 comments:
Math student
The solution that you give us doesn't make sense.

Dr Math
... and what is bad or unclear? What is your solution?

Math student
The answer is correct. For me solution is clear

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