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beanzz
to find z, 110 degrees and angle z are supplementary angles so the equal 180, 180-110=70 so angle z is 70 degrees. to find y, every shape that has four angles equals 360 so you add 70, 100, and 87 and subtract that from 360 and you get 103 so angle y equals 103 degrees
akposevictor

Using the definition of angles on straight line, the variables are:

y = 103° and z = 70°

What are Angles on a Straight Line?

Angles that lie on a straight line has a sum that is equal to 180 degrees.

110 and z are angles on a straight line. Therefore:

z = 180 - 110

z = 70°

y = 360 - 100 - 87 - 70 [sum of quadrilateral]

y = 103°

Learn more about angles on a straight line on:

https://brainly.com/question/24024505

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