Question

If the angles of a triangle are ${30}^{\circ },{70}^{\circ }$ and ${80}^{\circ }$, it is a/an ___________ triangle.

• A. right angled
• B. isosceles
• C. acute angled
• D. obtuse angled

Answer 1

The correct option is C acute angled

If all the angles of a triangle are less than ${90}^{\circ }$, then it is called an acute angled triangle.


The angles of a triangle are ${30}^{\circ },{70}^{\circ }$ and ${80}^{\circ }$ which are less than ${90}^{\circ }$. Hence, the given triangle is an acute angled triangle.