A regular

A regular triangular prism with a base edge of 20 dm and a height of 30 dm is given . Finf the volume of the prism and the area of the shell.

Correct result:

V =  5196.1524 dm3
S =  1800 dm2

Solution:

a=20 dm h=30 dm  S1=a2 34=202 34=100 3 dm2173.2051 dm2 V=S1 h=173.2051 30=5196.1524 dm3
S=3 a h=3 20 30=1800 dm2



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