8.9 Congruent Polygons 6.4.9- I can identify congruent figures and use congruence to solve problems.
4-1 Congruent Figures
9
4-1 Congruent Figures
-
Upload
noelle-mcdowell -
Category
Documents
-
view
21 -
download
0
description
4-1 Congruent Figures. Congruent Figures. Congruent polygons have congruent corresponding parts—their matching sides and angles. When you name congruent polygons, you must list corresponding vertices in the same order. Finding Congruent Parts. - PowerPoint PPT Presentation
Transcript of 4-1 Congruent Figures
4-1 Congruent Figures
Congruent Figures
• Congruent polygons have congruent corresponding parts—their matching sides and angles.
• When you name congruent polygons, you must list corresponding vertices in the same order.
Finding Congruent Parts
• If HIJK LMNO, what are the congruent corresponding parts?
If WYS MKV, what are the congruent corresponding parts?
Finding Congruent Triangles
• Are the triangles congruent? Justify your answer.
Is ABD CBD? Justify your answer.
Third Angles Theorem
• If two angles of one triangle are congruent to two angles of another triangle, then the third angles are congruent.
Proving Triangles Congruent