Question

Solve for x in the following figure

Answer 1

x = 80

Explanation:

∡KJL = 180 - (60 + 40)

∡KJL = 80

∡XJK + ∡KJL = 180 (they are a linear pair of angles)

x + 20 + 80 = 180

x + 100 = 180

x = 80