3.1.2 Angles, Parallel Lines, and Transversals - Practice

1. Identify the theorem or postulate that is related to the measures of the angles in the pair, and find the unknown angle measure. m ∠ 1 = (50 x ) ° , m ∠ 8 = 150 °

2. Identify the theorem or postulate that is related to the measures of the angles in the pair, and find the unknown angle measures. m ∠ 3 = (50 x − 100) ° , m ∠ 5 = (25 x + 25) °

3. Identify the theorem or postulate that is related to the measures of the angles in the pair, and find the unknown angle measures.

4. Identify the theorem or postulate that is related to the measures of the angles in the pair, and find the unknown angle measures. m ∠ 6 = (30 x + 30) °, m ∠ 7 = (45 x − 30) °

m ∠ ABC = (90 x − 45) °, m ∠ DEF = (60 x + 15) °

140

Made with FlippingBook - Online magazine maker