cam589722 cam589722
  • 26-12-2020
  • Mathematics
contestada

2. Find m21.
39°
1
30°
860

2 Find m21 39 1 30 860 class=

Respuesta :

jimrgrant1 jimrgrant1
  • 26-12-2020

Answer:

∠ 1 = 69°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ 1 is an exterior angle of the triangle, thus

∠ 1 = 39° + 30° = 69°

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