1. Measuring Angles in Triangles

2. The sum of the interior angles of any triangle = 1800
In Triangle CGU
Angle C + Angle G + Angle U = 1800

3. Angle K = 4x + 24 Angle Z = 48 Angle N = 8x – 12 Find x
Triangle KZN
Angle K = 4x + 24
Angle Z = 48
Angle N = 8x – 12
Find x
Find angles K, Z and N

4. Find the missing angle measure?0
330
520

5. Third Angle Theorem
If two angles of one triangle are congruent to two angles in another angel then the Third Angles Are Congruent Too
If P & M
then B M N A C P N

6. Exterior Angle Theorem
The measure of the exterior angle of a triangle is equal to the sum of the two remote interior angles B A C D
Angle ACB = Angle B + Angle D

7. Find the missing angle
800 ?0
200

8. Page 192
Problems 6 – 11
Problems 14 – 30
Problem 34