Triangular pyramid

Calculate a regular triangular pyramid's volume and surface area with a height equal to the base edge 10 cm long.

Correct answer:

V =  144.3376 cm3
S =  193.3638 cm2

Step-by-step explanation:

a=10 cm h=a=10 cm  S1=43 a2=43 102=25 3 cm243.3013 cm2 V=31 S1 h=31 43.3013 10=144.3376 cm3
r=630.2887 cm h=h2+r2=10.00422+0.2887210.0042 cm S2=21 a h=21 10 10.004250.0208 cm2  S=S1+3 S2=43.3013+3 50.0208=193.3638 cm2



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Math student
1/(3)(12*13)19/(2)





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