Question

What is the sum of interior angles in an acute angled triangle?

• A. ${160}^{\circ }$
• B. ${180}^{\circ }$
• C. ${150}^{\circ }$
• D. ${100}^{\circ }$

Answer 1

The correct option is B ${180}^{\circ }$


It is clear from the figure that, the triangle ABC is an acute angled triangle.
By angle sum property, $\angle 1+\angle 2+\angle 3={180}^o$

So, the sum of the interior angles of any triangle is equal to ${180}^{\circ }$.