Find m<2 if m<1 = 100 and m<6 = 128.
Answers and figure attached!

<6 +<3 =180 straight line
128+<3 =180
subtract 128 from each side
<3 = 180-128
<3 = 52
<1 + <2 + <3 = 180 sum of the angles of a triangle
100 + <2 + 52 = 180
152 +<2 = 180
subtract 152 from each side
<2 = 180-152
<2 =28