Survey

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Survey

Document related concepts

Multilateration wikipedia, lookup

Technical drawing wikipedia, lookup

Euler angles wikipedia, lookup

Rational trigonometry wikipedia, lookup

Geometrization conjecture wikipedia, lookup

Perceived visual angle wikipedia, lookup

Trigonometric functions wikipedia, lookup

Line (geometry) wikipedia, lookup

History of trigonometry wikipedia, lookup

Integer triangle wikipedia, lookup

Pythagorean theorem wikipedia, lookup

Transcript

4-2 Angle Relationships in Triangles Objectives Find the measures of interior and exterior angles of triangles. Apply theorems about the interior and exterior angles of triangles. Vocabulary Holt Geometry 4-2 Angle Relationships in Triangles B 1 A Holt Geometry 2 C 4-2 Angle Relationships in Triangles Practice 1. Use the diagram to find m∠MJK. 1.5 For Fun find m∠L = ? Holt Geometry 4-2 Angle Relationships in Triangles A corollary is a theorem whose proof follows directly from another theorem. Here are two corollaries to the Triangle Sum Theorem. Holt Geometry 4-2 Angle Relationships in Triangles Practice: Finding Angle Measures in Right Triangles 2. The measure of one of the acute angles in a right triangle is 63.7°. What is the measure of the other acute angle? Holt Geometry 4-2 Angle Relationships in Triangles Practice 3. The measure of one of the acute angles in a right triangle is 2° 48 5 . What is the measure of the other acute angle? 4. One of the acute angles in a right triangle measures 2x°. What is the measure of the other acute angle? Holt Geometry 4-2 Angle Relationships in Triangles Interior Holt Geometry Exterior 4-2 Angle Relationships in Triangles Practice: Applying the Exterior Angle Theorem 5. Find m∠B. Holt Geometry 6. Find m∠ACD. 4-2 Holt Geometry Angle Relationships in Triangles 4-2 Angle Relationships in Triangles Practice: Applying the Third Angles Theorem 7. Find m∠K and m∠J. Holt Geometry 4-2 Angle Relationships in Triangles Practice 8. Find m∠P and m∠T. Holt Geometry