![]() ![]() 12-2 Surface Areas of Prisms and Cylinders. A triangular prism consists of three inclined rectangular surfaces and two parallel triangle bases. Use the Pythagorean Theorem to find the height of the triangles. Main: Walkthrough examples followed by practice questions on worksheets. The total surface area of a Prism 2 (Base Area) + (Base perimeter × height) square units Triangular Prism A prism with a triangular base is referred to as a triangular prism. Prism: A geometric solid with two bases that are congruent, parallel polygons and all other faces are parallelograms. Excelling learners will be able to solve unfamiliar problems using their knowledge of calculating the volume of a prism.Secure learners will be able to calculate the surface area of a given prism. ![]()
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