![]() In this particular case, we're using the law of sines. ![]() Here's the formula for the triangle area that we need to use:Īrea = a² × sin(Angle β) × sin(Angle γ) / (2 × sin(Angle β + Angle γ)) We're diving even deeper into math's secrets! □ In this particular case, our triangular prism area calculator uses the following formula combined with the law of cosines:Īrea = Length × (a + b + √( b² + a² - (2 × b × a × cos(Angle γ)))) + a × b × sin(Angle γ) ▲ 2 angles + side between Surface area of Triangular Prism is the sum of the areas of all faces (or surfaces) of the shape and is represented as SA (bh)+(2LS)+(Lb) or Surface Area. You can calculate the area of such a triangle using the trigonometry formula: Now it's the time when things get complicated. ![]() But the basic concept to calculate surface area of a triangular prism is to. Then find the area of the prism for the above example. Calculating surface area of triangular prism might be tricky for some students. Example 2: If the height of the prism is 4cm and the length of the side of the equilateral triangular base is 6cm. This three-sided prism is a polyhedron that has a rectangular base, a translated copy and 3 faces joining sides. We used the same equations as in the previous example:Īrea = Length × (a + b + c) + (2 × Base area)Īrea = Length × Base perimeter + (2 × Base area) ▲ 2 sides + angle between Solution: Volume of Triangular Prism × b × h × l. A prism that has 3 rectangular faces and 2 parallel triangular bases, then it is a triangular prism. Where a, b, c are the sides of a triangular base This can be calculated using the Heron's formula:īase area = 0.25 × √, We're giving you over 15 units to choose from! Remember to always choose the unit given in the query and don't be afraid to mix them our calculator allows that as well!Īs in the previous example, we first need to know the base area.
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