in a triangle ABC angle A = x° , angle B = (3x - 2)°, angle C = yº and angle C - anlge B =9° . Find the three
angles.
Answers
Answered by
4
Step-by-step explanation:
x+3x-2+y=180
4x+y=182
y-(3x-2)
y-3x+2=9
y-3x = 7
subtracting
4x+y=182
-3x+y=7
7x=175
x=25
3x-2
73
y= 85
Similar questions