Question

In triangle $ABC$, $\angle B={30}^o$ and $\angle$ C$={70}^o$. The greatest side of the triangle is

• A. $AB$
• B. $BC$
• C. $AC$
• D. Data insufficient
  

Answer 1

The correct option is B $BC$

Since sum of angles in a triangle $={180}^o$
$\angle A={180}^o-{30}^o-{70}^o={80}^o$
Out of the three angles, $\angle A$ is the largest.
This means, the side opposite to it, which is BC will be the greatest side of the triangle.