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Interior Exterior Angles

angle relationships<br>geometry<br>pre-algebra

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Interior Exterior Angles

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  1. Good Morning! 01/18

  2. Name- __________________________ Triangle Warm-Up Sum of the Interior Angles of a Triangle: ⦟A + ⦟B + ⦟C = _______° The measures of the angles of a triangle are shown in the figures below. Solve for x. Show all your work. 2. 1.

  3. The measures of the angles of a triangle are shown in the figure below. Solve for x. REMEMBER…. The angles of a triangle add up to 180°

  4. The measures of the angles of a triangle are shown in the figure below. Solve for x. REMEMBER…. The angles of a triangle add up to 180°

  5. Answer key Angles on the inside of the shape Angles on the outside of the shape Same shapes with the ratios of the lengths of the corresponding sides are equal ⦟A + ⦟B + ⦟C = 180° ⦟X + ⦟Y + ⦟Z = 360°

  6. 4:40-8:40

  7. Practice - Angles of Triangles Practice Problems

  8. Answers to Practice Problems

  9. Practice - Angles of Triangles Practice Problems

  10. Answers to Practice Problems

  11. Practice - Angles of Triangles Practice Problems

  12. Answers to Practice Problems

  13. Practice - Angles of Triangles Practice Problems

  14. Answers to Practice Problems

  15. 148° 47° 120° 78° 102° 70°

  16. Label Triangle Angles- Click and Drag Answer key 47° 110° 70° 148° 78° 32° 120° 73° 60° 102°

  17. 80° 54° 67° 33° 54° 36° 80° 90°

  18. Answer key Label the Similar Triangle Angles- Click and Drag 67° 80° 54° 54° 67° 80° 90° 36° 33° 33° 36° 90°

  19. Answer key Writing Equations To Find X 70° 137° (x + 13) 2.8x 110° 50° 3x Write an equation to find x: ______________________ Solve for x: x = ______ Write an equation to find x: ______________________ Solve for x: x = ______ 137 + x + 13 = 180 2.8x + 110 = 180 Write an equation to find x: ______________________ Solve for x: x = ______ 30 25 50 + 70 + 3x = 180 20

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