Lesson: Congruent Polygons Mathematics • 8th Grade

In this lesson, we will learn how to identify congruent polygons and use their properties to find a missing side length or angle.

Lesson Plan

Students will be able to

define congruent polygons as polygons whose vertices and sides coincide exactly,
use the correct notation for congruent polygons with corresponding vertices in the same order,
understand that congruent shapes have corresponding interior angles and sides that are congruent and use this to solve geometry problems.

Q1:

Are two squares congruent if the side length of one square is equal to the side length of the other?

Q2:

Are any two equilateral triangles congruent?

Q3:

The symbol means that the two objects are congruent. Which statement is true?