Answer:
a = 150
Step-by-step explanation:
A straight angle measures 180°.
The measures of the smaller and larger angles add to 180°.
The smaller angle measures 1/6 of 180°.
The measure of the smaller angle is 1/6 × 180° = 180°/6 = 30°
We are told the larger angle measures a.
a + 30° = 180°
a = 150°
Answer: a = 150
