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# hello

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formula for surface area of a triangular prism?

Guest Apr 27, 2017
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Let a, b, c be the lengths of sides of the base and h be the height of the prism.

Total surface area

$$2\left(\sqrt{\dfrac{a+b+c}{2}\left(\dfrac{b+c-a}{2}\right)\left(\dfrac{a-b+c}{2}\right)\left(\dfrac{a+b-c}{2}\right)}\right)+h(a+b+c)$$

Sorry for being too scary, but that formula is real XDDDD

Simpler version:

Total surface area

$$2(\text{base area})+h\times(\text{perimeter})$$

MaxWong  Apr 27, 2017
edited by MaxWong  Apr 27, 2017