Question

The measures of angles of a triangle are (2x – 10)° , (2x – 30)° , (2x -20)°. Find x°.​

Answer 1

Answer:

x=40

Step-by-step explanation:

2x-10+2x-30+2x-20=180 (angle sum property of triangle)

6x-60=180

6x=240

x=40

Answer 2

x=40°

(2x-10) + (2x - 30 ) +(2x - 20 ) = 180° _( property of triangles)

2x - 10° + 2x - 30° + 2x - 20° = 180

6x - 60° = 180°

6x. = 180 + 60

6x. = 240°

x = 40°