Regular triangular prism

Calculate the surface area of the body of a regular triangular prism when the length of its base edge is 6.5 cm, and its height is 0.2 m.

Correct answer:

S =  390 cm2

Step-by-step explanation:

a=6.5 cm h=0.2 m cm=0.2 100  cm=20 cm  h2=3/2 a=3/2 6.55.6292 cm  S2=a h=6.5 20=130 cm2  S=3 S2=3 130=390 cm2



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