Question

In which of the following triangles, sum of measures of three interior angles is equal to ${180}^{\circ }$

• A. Scalane triangle
• B. Equilateral triangle
• C. Isosceles triangle
• D. All of the above

Answer 1

The correct option is D All of the above

In a triangle, sum of measures of interior angles is equal to ${180}^{\circ }$.


$\Rightarrow m\angle A+m\angle B+m\angle C={180}^{\circ }$