Congruent Polygons and Corresponding Parts

Objective: to name corresponding parts of congruent polygons and write congruence statements for congruent figures.

Vocabulary

Congruent – having the same size and shape

Corresponding – when given congruent polygons, vertices or sides that would line up (match)

Congruent polygons – polygons whose corresponding parts are congruent

Try this:

Fold a piece of paper in half. Without opening the paper, draw a polygon on

one side. Make the polygon be a Scalene ▲. With the paper folded, cut out your polygons

and label all vertices. (use different letters) Place one polygon over the other so that the

sides and angles match. Make a list of the corresponding parts of your

figures. How many corresponding pieces are there? If you were to measure the sides, what

conclusion could you draw?

Can you name the congruent pieces?

Look at page 100.

Looking at the pictures under class exercises can you answer the following questions?

Homework:

Section 4-1, p.101-102, 1-20 all