1. Prerequisite Skills VOCABULARY CHECK Copy and complete the statement. 1.  1 and ? are vertical angles. ANSWER 4  2.  3 and ? are consecutive interior angles. ANSWER 5

2. Prerequisite Skills VOCABULARY CHECK Copy and complete the statement. 3.  7 and ? are corresponding angles. ANSWER 3  4.  5 and ? are alternate interior angles. ANSWER 4

3. Prerequisite Skills SKILLS AND ALGEBRA CHECK Find the measures of the three angles. 5. In ABC, m A = x°, m B = 3x°, and m C = (4x – 12) °. ANSWER 24°, 72°, 84°

4. Prerequisite Skills Find the measure of the indicated angle. 6. If m  3 = 105°, then m 2 = ?. ANSWER 105° 7. If m  1 = 98°, then m 3 = ?. ANSWER 98° SKILLS AND ALGEBRA CHECK

5. Prerequisite Skills Find the measure of the indicated angle. 8. If m  4 = 82°, then m 1 = ?. ANSWER 98° 9. If m  2 = 102°, then m 4 = ?. ANSWER 78° SKILLS AND ALGEBRA CHECK