alleryStart learning →For any triangle, what is the sum of the measures of its three interior angles?
A180 degrees
B90 degrees
C270 degrees
D360 degrees
Answer & Solution
Correct answer: A. 180 degrees
1. Triangle properties state a fixed relationship among the three interior angles.
2. That relationship says the three angle measures always add up to the same total.
3. The total given for any triangle is 180 degrees.
_Source: OpenStax Elementary Algebra (CC BY 4.0), Ch 3 "Math Models", section 3.4 Solve Geometry Applications: Triangles, Rectangles, and the Pythagorean Theorem_
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