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How do you find angle measurements in this triangle?

How do you find angle measurements in this triangle?. (4x + 7). 2x -5. 3x. x + 11. 90. (8x - 1). In this lesson you will learn how to find the measure of an angle in a triangle by using the other two angles. 2. 1. 3. 1. 180. 3. 2. x + 11 + 2x - 5 + 3x 3x + 2x + x + 11 -5

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How do you find angle measurements in this triangle?

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  1. How do you find angle measurements in this triangle? (4x + 7) 2x -5 3x x + 11 90 (8x - 1)

  2. In this lesson you will learn how to find the measure of an angle in a triangle by using the other two angles.

  3. 2 1 3 1 180 3 2

  4. x + 11 + 2x - 5 + 3x 3x + 2x + x + 11 -5 6x + 6

  5. angle 1 + angle 2 + angle 3 90 1 3 2

  6. a 47 + 65 + x = 180 112 + x = 180 x = 68 angle b = 680 47 x 65 b c

  7. b X + 11 + 2x - 5 + 3x = 180 6x + 6 =180 6x = 174 x = 29 (2x -5) c a (3x) (x + 11)

  8. Angle a = x + 11 Angle a = 29 + 11 Angle a = 400 b (2x -5) a c (3x) (x + 11)

  9. In this lesson you have learned how to find the measure of an angle in a triangle by using the other two angles.

  10. Find the measurement of angle m. n (8x + 2) (4x) (2x + 10) o m

  11. Find the measure of angle b by solving for x a 80 x 65 b c

  12. Find the measure of angle c b (2x – 11) c a (2x + 27) (3x)

  13. Angle b is three times the measure of angle a. Angle c is two times the measure of angle a. What are the measures of all the angles in triangle abc? b c a

  14. Triangle ABC has angle that measure 78⁰ and 270. What is the measure of the third angle? • Determine all three angle measurements in Triangle XYZ that has angles that measure (2x – 15)0, (x – 5)0 and 420.

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