The angles in a triangle are in the ratio 1 : 2 : 3 Show that the triangle is a right-angled triangle

The angles are 30°, 60° and 90°

Step-by-step explanation:

The angles of the triangle are in the ratio,

1:2:3

Let the angles be , and

As the triangle is right-angled triangle.

The third angle will be 90°.

So,

By angle sum property, sum of the angles = 180°