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



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