How do I solve for angle one not sure if my answer is correct

Question

asked May 19, 2023 51.5k views

1 Answer

Catquatwa · Answer 1 · 2023-05-24T19:05:10+0000

78º

1) Considering that in any triangle, the sum of the interior angles must yield 180º

2) And the measurement of ∠1 is unknown, so we can write:

44º+58º + ∠1 = 180º

102º+ ∠1 =180º

∠1 = 180º -102º

∠1 = 78º

3) So the missing angle is 78º