NAME DATE SCORE Using Systems of Equations (For use with Lesson 3-6) 2 2910 to solve problems. By working through the steps in the problems below, you will gain skill in using systems of equations Problem I In parallelogram ABCD, the measure of ZA is 30 more than the measure of LB. What are the measures of ZA and Z B? a. What does the problem ask you to find? b. Let a = the measure in degrees of ZA and b = the measure in degrees of LB. Notice that ZA and ZB ar secutive angles of a parallelogram. Use this fact to write an equation relating the values of a and b. c. Use information given in the problem to write another equation relating the values of a and b. d. Write a system of equations and solve it. (Show your work.) e. Write your answer to the problem. f. Check: Is the measure of ZA 30 more than the measure of LB? Is the sum of the measures also correct