Question

The sum of all three interior angles in an acute-angled triangle is equal to .

• A. 45${}^{\circ }$
• B. 90${}^{\circ }$
• C. 180${}^{\circ }$

Answer 1

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

The angle sum property of a triangle states that the sum of the interior angles of any triangle is 180${}^{\circ }$ and hence the sum of all three interior angles in an acute-angled triangle is also 180${}^{\circ }$.