Question 307852
One angle of a triangle is 20 degrees. The second angle’s measurement is four times the third. What is the measure of the third angle? HOW I SOLVE THIS?

one angle is 20 degrees

Let the third angle be x deg.

The second angle will be 4x deg

The first angle = 20 deg

sum os angle s = 180 deg

x+4x+20 =180

5x+20 =180
5x=160
x= 32 degrees. This is the third angle