Can someone help me solve this 15 points

see explanation

Step-by-step explanation:

∠ 1 and ∠ 2 are adjacent angles and supplementary, thus

∠ 2 = 180° - ∠ 1 = 180° - 110° = 70°

--------------------------------------------------

The chord- chord angle 3 is half the sum of the measures of the arcs intercepted by the angle and its vertical angle, thus

∠ 3 = (100 + 60)° = 0.5 × 160° = 80°

∠ 3 and ∠ 4 are adjacent angles and supplementary, thus

∠ 4 = 180° - 80° = 100°

Thus

Angle    Value

   1           110

   2            70

   3             80

   4            100

step-by-step explanation:

i pretty sure it is