Question

find the measure of the missing angle.
answer attempt 1 out of 5
a =

Explanation:

Step1: Identify angle relationship

The two angles (157° and \( a \)) are supplementary (they form a straight line, so their sum is 180°).

Step2: Calculate missing angle

Use the formula \( a = 180^\circ - 157^\circ \).
\( a = 23^\circ \)

Answer:

\( 23^\circ \)