Question

The sum of the acute angles of an obtuse triangle is ${70}^{\circ }$ and their difference is ${10}^{\circ }$. The largest angle is:

• A. ${110}^{\circ }$
• B. ${105}^{\circ }$
• C. ${100}^{\circ }$
• D. ${95}^{\circ }$

Answer 1

Answer: (A)

${110}^{\circ }$

In an obtuse angle triangle, the largest angle is the obtuse angle.
$\therefore$Obtuse Angle $={180}^o-{70}^o$
$\Rightarrow$ Obtuse Angle $={110}^{\circ }$

So, option A is correct.