Triangular prism

Calculate the surface of a triangular prism with the base of an equilateral triangle with a side length of 7.5 cm and a corresponding height of 6.5 cm. Prism height is 15cm.

Correct answer:

S =  386.25 cm2

Step-by-step explanation:

a=7.5 cm v=6.5 cm h=15 cm  S1=2a v=27.5 6.5=8195=24.375 cm2 o=3 a=3 7.5=245=22.5 cm  S=2 S1+o h=2 8195+245 h=2 24.375+22.5 15=41545 cm2=386.25 cm2

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Showing 2 comments:
where did you get the 8.5 value, the given side length is 7.5.

thnk you for found typo fix

Tips for related online calculators
Calculation of an equilateral triangle.
See also our trigonometric triangle calculator.

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