Question

that triangle ABC is equilateral if angle A equal to X + 42 degree angle B equal to 4 x minus 12 degree and Angle c equal to 3 X + 6 degree​

Answer 1

Answer:

x+42+4x-12+3x+6=180

5x+36=180

8x=180-36

8x=144

x=18

Answer 2

ANSWER:

THE OTHER ONE GIVEN HERE IS WRONG !!!

Step-by-step explanation:

X + 42° + 4X - 12° + 3X + 6° = 180°

8X + 36° = 180°

8X = 180°- 36°

8X= 144

X =144/8

X= 18

NOW U CAN FILL THE VALUES

IF THE ANSWER OF ALL IS 60°

IT MEANS IT IS A EQUILATERAL TRIANGLE

IF NOT THEN ITS NOT A EQUILATERAL TRIANGLE

I HOPE I WOULD BE HELPFUL TO YOU