30 ! in the figure below, angle y and angle x from vertical angles. angle y forms a straight line with the 80° angle and the 60° angle.

write and solve the quetion to determine the measure of angle x.

x = 40°

Step-by-step explanation:

Since y, 80 and 60 form a straight angle then their sum = 180°, hence

y + 80 + 60 = 180

y + 140 = 180 ( subtract 140 from both sides )

y = 40

x and y are vertical angles and thus congruent

x = y = 40°

x=6 and x=3

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