6, Lesson 21, Unit 3, Grade 7, EngageNY icon
Instructional Activity

Example 1: Lateral Area of a Right Prism

Lesson 21. Unit 3. Grade 7 EngageNY

EngageNY6 min(s)

This Instructional Activity is a part of the Lesson 21, Unit 3, Grade 7. Students find the lateral areas of right prisms and recognize the pattern of multiplying the height of the right prism (the distance between its bases) by the perimeter of the prism's base. A right triangular prism, a right rectangular prism, and a right pentagonal prism are pictured below, and all have equal heights. Write an expression that represents the lateral area of the right triangular prism as the sum of the areas of its lateral faces.

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