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1-3: p. 24: 1-8, 19-22, 34-37

1-3: p. 24: 1-8, 19-22, 34-37. 19. acute 20. right 21. acute 22. obtuse. 1-3: p. 24 continued…. 1-3: Classifying Angles. OBJECTIVES: To write and solve equations using the angle addition postulate and definition of bisects. 1-3: Classifying Angles. 48 . 48 . S. . R. .

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1-3: p. 24: 1-8, 19-22, 34-37

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  1. 1-3: p. 24: 1-8, 19-22, 34-37 19. acute 20. right 21. acute 22. obtuse

  2. 1-3: p. 24 continued…

  3. 1-3: Classifying Angles • OBJECTIVES: • To write and solve equations using the angle addition postulate and definition of bisects.

  4. 1-3: Classifying Angles 48 48

  5. S  R  Angle Addition Postulate 1-3-2  P If S is in the interior of PQR, then mPQS + mSQR = mPQR. Q EXAMPLE 1: mDEG = 115°, and mDEF = 48°. Find mFEG

  6. 1-3: Classifying Angles EXAMPLE 2: mWYZ = (2x – 5)° and mXYW = (3x + 10)°. Find the value of x.

  7. 1-3: Classifying Angles EXAMPLE 3: KM bisects JKL, mJKM = (4x + 6)°, and mMKL = (7x – 12)°. Find mJKM. EXAMPLE 3: KM bisects JKL, mJKM = (4x + 6)°, and mMKL = (7x – 12)°. Find mJKM.

  8. 1-3: Classifying Angles EXAMPLE 4: QS bisects PQR, mPQS = (5y – 1)°, and mPQR = (8y + 12)°. Find the measure of each angle.

  9. 1-3: Classifying Angles YOU TRY IT! JK bisects LJM, mLJK = (-10x + 3)°, and mKJM = (–x + 21)°. Find mLJM. YOU TRY IT! JK bisects LJM, mLJK = (-10x + 3)°, and mKJM = (–x + 21)°. Find mLJM.

  10. 1-3: Classifying Angles ASSIGNMENT: p. 24: 9, 10, 17, 18, 29-32, 41-45

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