Question

the sum of the interior angles of a triangle is ______.
360°
90°
270°
180°

Explanation:

The sum of the interior angles of a triangle is a fundamental geometric concept. By the triangle angle - sum theorem, the sum of the three interior angles of any triangle is always \(180^{\circ}\). A quadrilateral has an interior angle sum of \(360^{\circ}\), a right - angled triangle has one \(90^{\circ}\) angle but the sum of all three is \(180^{\circ}\), and \(270^{\circ}\) is not the sum of interior angles of a triangle.

Answer:

\(180^{\circ}\) (the option corresponding to \(180^{\circ}\))