find the measure of the missing angle. answer attempt 1 out of 2 a =

find the measure of the missing angle. answer attempt 1 out of 2 a =
Answer
Explanation:
Step1: Recall angle - sum property
The sum of angles on a straight - line is 180°.
Step2: Set up the equation
Let the missing angle be (a). We have (a + 110^{\circ}=180^{\circ}).
Step3: Solve for (a)
(a=180^{\circ}-110^{\circ}).
Answer:
(70^{\circ})