The angle A of the triangle ABC is equal to 76; the outer angle at the vertex B is equal to 94

The angle A of the triangle ABC is equal to 76; the outer angle at the vertex B is equal to 94 degrees. Find the corner C.

Let’s solve a geometric problem. But first, let’s make a short condition:
Angle A – 76 °;
Outside angle at apex В – 94 °;
Angle C -?
So, remember that the outer and inner angles at one vertex in a triangle always add up to 180 °. Thus, we calculate the degree measure of the angle B:
180 – 94 = 86 °;
Now we find the sum of angle A and angle B:
86 + 76 = 162 °;
Since the sum of all angles in a triangle is always 180 °, we can easily find the degree measure of the last angle in a triangle:
180 – 162 = 18 ° – angle С;
Answer: 18 °.



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