Classifying Triangles by type

Classifying Triangles by type - Transcript

Classifying Triangles
Lesson 8 4

Classifying by Angle

Acute tria ngle s ha ve thre e a cute a ngle s Obtus e tria ngle s ha ve o ne o btus e a ngle Right tria ngle s ha ve o ne right a ngle

Classifying by Sides

Equila te ra l tria ngle s ha ve thre e c ongrue nt s ide s Is os ce le s tria ngle s ha ve two c ongrue nt s ide s S ca le ne tria ngle s ha ve z e ro c ongrue nt s ide s

Finding Missing Angles
The thre e a ngle s of a tria ngle a lwa ys a dd to 1 80 Us e a va ria ble to s ta nd for the mis s ing a ngle a nd s e t a n e qua tion e qua l to 180

x 49 47 180 x 96 180 96 96 x 84

Homework Time