Triangular Prism Surface Area

Triangular Prism Surface Area

11th Grade · Math · 30 min

Lesson Preview

Learning Objective

I can calculate the surface area of a triangular prism using its dimensions.

  • 1

    The surface area of a triangular prism is the sum of the areas of its two triangular faces and three rectangular faces.

  • 2

    To find the area of a rectangle, multiply the base by the height, and to find the area of a triangle, multiply the base by the height and divide by two.

  • 3

    To find the surface area of a triangular prism, first draw the five faces with dimensions, then find the area of each face, and finally add the five areas together.