Question

In a triangle, the measure of the first angle is six times a number. The measure of the second angle is nine less than the first angle. The measure of the third angle is three times the number more than the measures of the first angle. Determine the measure of each angle in degrees.

Answer 1

a=6n
b=6n-9
c=6n+3n

21n-9=180
21n=189
n=9

angle 1= 54
angle 2= 45
angle 3= 81