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Section 3.2 Properties of Parallel Lines

Section 3.2 Properties of Parallel Lines. If two parallel lines are cut by a transversal, then. Alternate interior angles (AIAs) are Alternate exterior angles (AEAs) are Corresponding Angles (CAs) are. 3. 2. 1. 4. If two parallel lines are cut by a transversal, then.

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Section 3.2 Properties of Parallel Lines

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  1. Section 3.2 Properties of Parallel Lines

  2. If two parallel lines are cut by a transversal, then • Alternate interior angles (AIAs) are • Alternate exterior angles (AEAs) are • Corresponding Angles (CAs) are 3 2 1 4

  3. If two parallel lines are cut by a transversal, then • Same side interior angles (SSIAs) are SUPPLEMENTARY • Same side exterior angles (SSEAs) are SUPPLEMENTARY 1 3 2 4

  4. State the Theorem or Definition to JUSTIFY! Vertical Angle Theorem CAs AEAs AIAs CAs or AEAs

  5. Find the values of x and y. o 67O 67o + 55o 122o 58o 180o - 122o o

  6. Find the value of x, y and z. 109o 2x - 31 = 109o 2x = 140 x = 70 o 109o 109o 71 180o – 109o = 71 = 4z 5y + 44 = 109o z = 17.75 5y = 65 y = 13

  7. Find the values of x and y. 4(30) – 2y = 110 120 – 2y = 110 – 2y = -10 8x = 240 y = 5 x = 30 4x – 2y = 110o 180o – 70o 110o 4x + 2y = 130o 180o – 50o 130o

  8. Find the values of x and y. 6(4) +5y = 44 3(6x + 5y = 44o) 18x + 15y = 132o) 24 + 5y = 44 55x – 15y = 160o) 5(11x – 3y = 32o) 5y = 20 73x = 292 y = 4 x = 4 180o –136o 6x + 5y = 44o 44o 180o – 148o 32o 11x – 3y = 32o

  9. PARTNER PRACTICE Page 80 Classroom Exercises #2 – 10 Page 81 Written Exercises #7 and 8

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