In The Diagram Below Of Triangle GHJ, K Is A Midpoint Of GH And L Is A Midpoint Of HJ. If angle LKH = 2x + 49 and angle JGK = 4x + 29, what is the measure of angle LKH?
Lines KL and GJ are paralle, so
2x + 49 = 4x + 29
20 = 2x
x = 10