Answer:
a = 127°
Step-by-step explanation:
The 3 angles lie on a straight line and have a sum of 180°, that is
15° + a + 38° = 180°
53° + a = 180° ( subtract 53° from both sides )
a = 127°
Answer:
4
Step-by-step explanation:
Answer:
nice
Step-by-step explanation:
Answer:
10.5
Step-by-step explanation:
Answer:
576
Step-by-step explanation: