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Big Ideas Math Integrated I, 2016

BI

Big Ideas Math Integrated I, 2016 View details

Chapter Review

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Exercise 2 Page 646

Consider the Exterior Angle Theorem.

132^(∘)

Practice makes perfect

Let's analyze the given triangle.

According to the Exterior Angle Theorem, the measure of an exterior angle of a triangle is equal to the sum of the measures of the two nonadjacent interior angles. Let's write an equation applying this theorem. x=46+86 ⇒ x=132 We found that x=132. Therefore, the measure of the exterior angle is 132^(∘).

Subchapter links

1 Angles of Triangles p.646

2 Congruent Polygons p.646

3 Proving Triangle Congruence by SAS p.647

4 Equilateral and Isosceles Triangles p.647

5 Proving Triangle Congruence by SSS p.648

6 Proving Triangle Congruence by ASA and AAS p.649

7 Using Congruent Triangles p.649

8 Coordinate Proofs p.650