Lesson 10-2 Pages 500-504

Congruent Triangles

Lesson Check 10-1

What you will learn!1. How to identify congruent triangles and corresponding parts of congruent triangles.

CongruentCongruentCorresponding partsCorresponding parts

What you really need to know!

What you really need to know!

If two triangles are congruent, their corresponding sides are congruent and their corresponding angles are congruent.

Example 1:

Name the corresponding pairs in the congruent triangles shown. Then complete the congruence statement.

D H, E G, F I, DE HG, DF HI, EF GI, ∆HGI ∆DEF

Example 2:

If ∆MNO ∆QPR, complete each congruence statement.

M ??P ??O ??QP ??NO ??MO ??

M QQP N N O R R QP MN MN NO PR PR MO QR QR

Example 3:

A brace is used to support a tabletop. In the figure ∆ABC ∆DEF.

What is the measure of F?

F C, so F is 50°.

What is the length of DF?

DF AC, so DF is 2 ft.

Page 502

Guided Practice

#’s 3-9

Pages 500-502 with someone at home and

study examples!

Read:

Homework: Pages 503-504

#’s 10-29 all

#’s 36, 37, 38, 42, 43

Lesson Check 10-2

Page

748

Lesson 10-2

Lesson Check 10-2