Question

5. Two angles of a triangle are in ratio 1:2. Find the measure of all angles of a the triangle if third angle is equal to
sum of other tow angles​

Answer 1

Let ,

The two angles of triangle be x and 2x

So , other angle = x + 2x

We know that , the sum of the measures of the interior angles of a triangle is 180 degree

Therefore ,

x + 2x + x + 2x = 180

2x + 4x = 180

6x = 180

x = 30

Hence , the required angles are 30 , 60 and 90 respectively