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Amiraneli [1.4K]
2 years ago
11

What is m∠1? 1 39° 85° m∠1 = °

Mathematics
1 answer:
koban [17]2 years ago
5 0

Answer:

  • 56°

Step-by-step explanation:

<em>It is assumed the three angles are interior angles of a triangle.</em>

Given

  • ∠1, 39°,  85°

We know the sum of interior angles of a triangle is 180°.

Use this property to find the missing angle measure:

  • m∠1 + 39° + 85° = 180°
  • m∠1 + 124° = 180°
  • m∠1 =  180° - 124°
  • m∠1 =  56°
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