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(β) × sin(γ) / (2 × sin(β + γ)) ![]() We're diving even deeper into math's secrets! □ This can be done by setting the figure into coordinate space by setting the right angle of the bigger triangle to origin and giving the two other points the coordinates ( d, 0, 0) and. But you still have to solve the height h 1. 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(γ)))) + a × b × sin(γ) ▲ 2 angles + side between Theres a formula in terms of h 1 and A 1, A 2 (the areas of the base triangles) V 1 3 h 1 ( A 1 + A 1 A 2 + A 2). You can calculate the area of such a triangle using the trigonometry formula: Now, it's the time when things get complicated. 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 Where a, b, c are the sides of a triangular base This can be calculated using the Heron's formula:īase area = ¼ × √ 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. The base is 93.6 cm 2, and the height is 20 cm. ![]() To find the volume of the right hexagonal prism, we multiply the area of the base by the height using the formula V B h.
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