angle 1 = 90
what does angle 2 = 90
angle 1 = 90
angle 2 = 13
angle 3 =
50
the half 1/4 square tells you that it is 90
so 180 - 90 = 90 that is how you would
find the answer for #1
90 + 13 = 103
180 - 130 =
50
angle 1 = 90
angle 2 = 20
angle 3 =
70
90 + 20 = 110
180 - 110 =
70
1 = 170
2 = 100
3 =
90
170 + 100 = 270
360 - 270 =
90
