Rotation

The right triangle with legs 11 cm and 18 cm rotates around the longer leg.

Calculate the volume and surface area of the formed cone.

Correct answer:

S =  1109.1244 cm2
V =  2280.7963 cm3

Step-by-step explanation:

a=11 cm b=18 cm  b>a  r=a=11 cm s=a2+b2=112+182=445 cm21.095 cm  S1=π r2=3.1416 112380.1327 cm2 S2=π r s=3.1416 11 21.095728.9917 cm2 S=S1+S2=380.1327+728.9917=1109.1244 cm2
V=31 S1 b=31 380.1327 18=2280.7963 cm3



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Tip: Our volume units converter will help you convert volume units.
See also our right triangle calculator.
See also our trigonometric triangle calculator.

 
We encourage you to watch this tutorial video on this math problem: video1

Related math problems and questions: