Question

The $\Delta$ formed by $BC=7.2cm,AC=6cm$ and $\angle C={120}^{\circ }$ is:

• A. an acute angle $\Delta$
• B. an obtuse angled $\Delta$
• C. a right angled $\Delta$
• D. none of these

Answer 1

The correct option is B an obtuse angled $\Delta$

One of the given angle of the triangle is greater than ${90}^{\circ }$.

So the triangle formed is obtuse angled triangle .