Question

If angles of triangle are in a ratio 1:1:2.measures of all the angles will be?

• A. $45,45,90$
• B. $30,60,90$
• C. $40,40,100$
• D. $30,50,100$

Answer 1

The correct option is A $45,45,90$

Let the angles be $x,x$ and $2x$

Using angle sum property of triangle

$x+x+2x={180}^{\circ }4x={180}^{\circ }x={45}^{\circ }$

So the angles are

$x={45}^{\circ }x={45}^{\circ }2x=2\times {45}^{\circ }={90}^{\circ }$