Question

find the measure of the missing angle. 63° a answer attempt 1 out of 2 a =

Explanation:

Step1: Recall angle - sum property

The two angles are adjacent and form a straight - line. The sum of adjacent angles on a straight - line is 180°.
Let the known angle be 63° and the unknown angle be \(a\). So, \(a + 63^{\circ}=180^{\circ}\).

Step2: Solve for \(a\)

Subtract 63° from both sides of the equation: \(a=180^{\circ}- 63^{\circ}\).
\(a = 117^{\circ}\)

Answer:

\(117^{\circ}\)