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Nuetrik [128]
3 years ago
11

Find the measure of angle a.

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
3 0

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°

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