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Two angles in a triangle have measures of 13° and 65°.

What is the measure of the third angle?


A.
78°

B.
143°

C.
102°

D.
52°

Sagot :

Answer:A:78

Step-by-step explanation:

akposevictor

Applying the definition of sum of triangle, the third angle measure is: C.  102°

Recall:

  • Sum of a triangle/sum of all interior angles in a triangle = 180 degrees

Thus, given that a triangle has two angles that measures, 13 degrees and 65 degrees respectively, therefore, the third angle of the triangle can be calculated as follows:

Third angle = 180 - (13 = 65) (Sum of Triangle).

Third angle = 180 - 78

Third angle = 102 degrees.

Therefore, applying the definition of sum of triangle, the third angle measure is: C.  102°

Learn more here:

https://brainly.com/question/18533481

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