![]() The area of an obtuse triangle can be calculated using the formula: (1/2) × base × height, by determining the length of any of its sides and height. ![]() How Do You Calculate the Area of an Obtuse Triangle? The height of a scalene triangle is the length of the perpendicular from one side of the triangle to the opposite vertex. From the above figure, The surface area of the rectangular prism ( S) 2 ( lb + bh + lh ) Where, l is the length of the rectangular prism. We want to be able to find the net and calculate the volume and surface area for different types of prisms, like rectangular, triangular, etc. What Is the Height of a Scalene Triangle? In this lesson we’ll look at an introduction to three-dimensional geometric figures, specifically nets, volume, and surface area of prisms. Heron’s formula is: \(\text \), where, 's' is the semi-perimeter, and 'a', 'b', and 'c' are the sides of scalene triangle. Heron's formula is applicable when all three sides of the triangle are known to us.Ĭonsider the triangle ABC with sides a, b, and c has shown in the image. 'surface area' bh+2ls+lb If you think it is too long to remember, just find the area of each of the shapes on it and add them together.
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