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Find the value of x. Then find the measure of each labeled angle.
x = 70; the labeled angles are 110º and 70º.

x = 110; the labeled angles are 110º and 70º.

x = 20; the labeled angles are 160º and 20º.

x = 20; the labeled angles are 60º and 20º.

Find the value of x Then find the measure of each labeled angle x 70 the labeled angles are 110º and 70º x 110 the labeled angles are 110º and 70º x 20 the labe class=

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Answer:

the first choice is correct

Step-by-step explanation:

The quadrilateral has one pair of parallel bases, hence is a trapezium.

A property is that each lower base angle is supplementary to the upper base angle on the same side, hence

x + x + 40 = 180

2x + 40 = 180 ( subtract 40 from both sides )

2x = 140 ( divide both sides by 2 )

x = 70

The 2 angles are x = 70° and x + 40 = 70 + 40 = 110°