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Since angle 4 is across from angle 2 it is equal to it because they are called opposite or vertical angles which are always equal.

Angle 4 = 143 degrees.

Angles 1 and 2 are supplementary because they share one of the same lines. This means their angle values add up to 180 which is the angle measure of a line.

180 - 143 = 37

Angle 1 = 37 degrees.

Since angle 3 is across from angle 1 it is equal to it because they are called opposite or vertical angles which are always equal.

Angle 3 = 37 degrees.

I hope this helps!

The measure of angle 1 would be 37 degrees because a straight angle is 180 degrees.

You subtract 143 from 180 to get 37 degrees.

measure of angle 1 = 37


For the measure of angle 3, it is the same as the measure of angle 1 because vertical angles have the same angle measure. Angle 1 and Angle 3 are vertical angles.

measure of angle 3 = 37


Angle 4 and Angle 2 are vertical angles, so they have the same measure.

The measure of Angle 2 is given (143).

measure of angle 4 = 143

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