Question

One angle of triangle measures 80 degree and other two are in ratio 1:3.Find these angles​

Answer 1

Answer:

40 and 60

Step-by-step explanation:

All the angles of a triangle add up to 180.

If one of them is 80, then 180-80 = 100

You only have 100 degrees left to split between the other 2 angles.

Since they are in a 2:3 ratio, one will be 2x and the other will be 3x and so

2x + 3x = 100

5x = 100

x = 20

So that means that one of the angles is 40, and the other is 60.

Answer 2

Answer:

since sum of all angle of triangle =180degree

let ratio be 1x and 3x respectively

then,1x+3x+80degree =180degree

4x=180-80degree

x=100/4

x=25

therefore,1x=25degree

3x=3×25

=75degree

hope it helps