Question

the interior angles are in ratio 1:2:3. find the ratio of its exterior angles​

Answer 1

Answer:

the ratio of exterior angle will be 3:2:1

Answer 2

• The sum of angles of a triangle is 180°...
• If the ratio is 1:2:3 then the angles are 30°,60°,90° .
• the ratio is 1:2:3 then the angles are 30°,60°,90° .The exterior angle of an angle α measures always 360° , which means the exterior angles are 330°,300°,270° .(subtracting 360 from 30,60 nd 90 respectively)

Consequently, their ratio is 9:10:11...

Hope this helped....