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Lines m and n are parallel, as shown in the diagram below. What are the measures of angles A and B?

 

 Jul 29, 2020
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This requires some angle chasing, which I think is pretty fun.

So, we see that since m and n are parallel, the angle next to B is also 65 degrees. So, to solve for B, we add 55+65+B and subtract that from 180. Try that.

For A, we know that all the angles in a triangle add up to 180. So,  A+B+65 and subtract that from 180.

Once you have done what is put in green, you will get the answers you need.

 Jul 29, 2020

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