Cone

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 result:

r =  12.7 cm
o =  79.79 cm

Solution:

V=5699 cm3 h=15 cm  V=13 π r02 h  r0=3 Vπ h=3 56993.1416 1519.0476 cm  r=23 r0=23 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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