Question

the second angle of a triangle is the same size as the first angle. the third angle is 12 degrees larger than the first angle. how large are the angles?

Answer 1

LET THE FIRST ANGLE BE X THEN SECOND ALSO X

THIRD ANGLE = X+12

A=X=B

A+B+C = 180 (ANGLE SUM PROPERTY )

X+X+(X+12)=180

3X=180-12

X= 168/3

X=56

HOPE IT HELPED.

THANKS.