Prerequisite Skills VOCABULARY CHECK Copy and complete the statement. 1. Adjacent angles share a common ? and ? . vertex and side ANSWER 2. Two angles are ? angles if the sum of their measures is 180°. ANSWER supplementary

Prerequisite Skills SKILLS AND ALGEBRA CHECK The midpoint of AB is M. Find AB. 3. AM = 5x – 2, MB = 2x + 7 26 ANSWER 4. AM = 4z + 1, MB = 6z – 11 ANSWER 50

Prerequisite Skills SKILLS AND ALGEBRA CHECK Find the measure of each numbered angle. 5. ANSWER 1: 142° 2: 38° 3: 142°

Prerequisite Skills SKILLS AND ALGEBRA CHECK Find the measure of each numbered angle. 6. ANSWER 1: 90° 2: 90° 3: 90°

Prerequisite Skills SKILLS AND ALGEBRA CHECK Find the measure of each numbered angle. 7. ANSWER 1: 45° 2: 135° 3: 45°

Prerequisite Skills SKILLS AND ALGEBRA CHECK Sketch a diagram for each statement. QR is perpendicular to WX . 8. ANSWER

Prerequisite Skills SKILLS AND ALGEBRA CHECK Sketch a diagram for each statement. 9. Lines m and n intersect at point P. ANSWER