i need hw help, find m<1 and m<2?

Question

If AB ll CD and BC ll AD,
find m<1 and m<2
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Answer 1

m<1 is 40 because it is an alternate interior angle to the angle CDB which is labeled 40.

m<2 is 75, because it forms a triangle with <1 (40) and angle ADB, which is labeled 65. The sum of angles in a triangle is 180:

180 = m<1 + 65 + m<2
180 = 40 + 65 + m<2
75 = m<2