Question

triangle sum of angles internal angles
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Answer 1

Step-by-step explanation:

the sum of internal angle of equilateral triangle is 60 degree

and the sum of angles of triangle is 180 degree

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Answer 2

Answer:

Sum of internal angles of a triangle is 180⁰.......

Step-by-step explanation:

A triangle's angles add up to 180 degrees because one exterior angle is equal to the sum of the other two angles in the triangle. In other words, the other two angles in the triangle (the ones that add up to form the exterior angle) must combine with the third angle to make a 180 angle.

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