warmup – grab a book room 195236, submit answers for x and y
TRANSCRIPT
Learning Targets
• I can find missing angles of a triangle using the Triangle Angle Sum Theorem
• I can classify triangles by their sides and angles• I can use exterior angles of triangles to find missing
interior angles
Classifying Triangles by angles
•Equiangular: all angles congruent•Acute: all angles acute•Right: one right angle•Obtuse: one obtuse angle
Classifying Triangles by Sides
•Equilateral: all sides congruent• Isosceles: two sides congruent•Scalene: no sides congruent
• Triangle Exterior Angle Theorem:
The measure of each exterior angle of a triangle equals the sum of the measure of its two remote interior angles