Equilateral 73374

The axial section of the cone is an equilateral triangle with a side of 12 cm. Surface and volume calculation.

Correct answer:

V =  391.7807 cm3
S =  339.292 cm2

Step-by-step explanation:

a=12 cm  r=a/2=12/2=6 cm h=3/2 a=3/2 12=6 3 cm10.3923 cm  V=31 π r2 h=31 3.1416 62 10.3923=391.7807 cm3
s=a=12 cm  S=π r2+π r s=3.1416 62+3.1416 6 12=339.292 cm2

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

Tips for related online calculators
Need help calculating sum, simplifying, or multiplying fractions? Try our fraction calculator.
See also our right triangle calculator.
Tip: Our volume units converter will help you convert volume units.
Calculation of an equilateral triangle.
See also our trigonometric triangle calculator.

You need to know the following knowledge to solve this word math problem:

We encourage you to watch this tutorial video on this math problem: video1   video2

Related math problems and questions: