contestada

If the vertex angle of an isosceles triangle is 39°, what is the measure of each base angles?

A. 71°
B. 70.5°
C. 81°
D. 80.5°
Other:----------------------------------

Respuesta :

Step-by-step explanation:

Total =180°

Top vertex=39°

2base angles=180-39

2base angles=141

base anglez=141/2

base angle=70.5°

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