Measuring Angles in Triangles

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Presentation transcript:

Measuring Angles in Triangles

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

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

Find the missing angle measure ?0 330 520

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 A @ P & B @ M then B M C @ N A C P N

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

Find the missing angle 800 ?0 200

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