Question

2 supplementary angles are in the ratio 7:5, find the angles.​

Answer 1

Answer:

105˚,75˚

Step-by-step explanation:

Let one angle=x and the other supplementary angle=180˚-x

Now,

x/(180-x)=7/5

5x=1260-7x

12x=1260

x=105˚       and      180-x=75˚

Answer 2

Answer:

introduce one variable as a x

then Alq

7x+5x=180

12x=180

x=15

Step-by-step explanation:

then

7×15=105

5×15=75