Question

The angles of a triangles are (2x-7)degree,(x+25)degree and (3x+12). find the measures of the angles

Answer 1

we know that the sum of all angle of a triangle =180
since


(2x-7)+(x+25)+(3x+12)=180

6x+30=180

6x=180-30

6x=150

x=150÷6

x=25

hence 1 angle 43 2angle 50 3angle 87.