Question

triangle sum theorem
sum theorem - in a triangle, the 3 angles sum to
$m\angle a+m\angle b+m\angle c = 180^{\circ}$
all missing angles. triangles may not be drawn to

Explanation:

The Triangle Sum Theorem states that in a triangle, the sum of the three interior angles is \(180^{\circ}\). This is a fundamental property in geometry.

Answer:

interior, \(180^{\circ}\)