• question_answer 6) Angles of a triangle are in the ratio of 1 : 2 : 3. Find the measurement of the largest angle. A) $95{}^\circ$                B)        $94{}^\circ$C) $90{}^\circ$   D)        $100{}^\circ$E) None of these

Explanation Option [c] is correct. The ratio of the angles is $1:2:3.$ Hence, $x+2x+3x=180{}^\circ$ $\Rightarrow 6x=180{}^\circ \Rightarrow x=\frac{180{}^\circ }{6}=30{}^\circ .$ Thus, the measurement of the largest angle $=30{}^\circ \times 3=90{}^\circ .$