Question

If one angle of a triangle is 60° and the other two angles are in the ratio 1:2,then find the angles

Answer 1

One angle=60 degree

Ratio of second and third angles=1:2

Let the common ratio be x.

So ratio of second and third angles=1x:2x

Sum of all angles=60+x+2x=180 degree

3x=180-60

3x=120

x=120/3

x=40

First angle=60

Second angle=x =40

Third angle=2x

=2*40

=80

Answer 2

1 angle is 60 degree given

lets take 1:2 as x+2x so

x+2x + 60= 180

3x+60= 180

3x= 180-60

3x=120

x=120/3

x=40

1 into 40 = 40

2 into 40= 80

so the three angles are 60,40 and 80

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