the angle of triangle are (x-40)° , (x-20)° and (1/2x -10)° find the value of x. About the author Savannah

Step-by-step explanation: by ,the sum of all angles of triangle = (x+40) + (x-20) + (1/2x-20)=180 = x+40 + x-20 + 1/2x-20 = 180 =(x+x+x/2) – (40+20+20) =180 = (x+x+x/2) -80=180 = 5x/2 = 180+80 = 5x/2=250 = 5x= 250*2 = 5x = 500 = x=500/5 =x = 100 Reply

Step-by-step explanation:by ,the sum of all angles of triangle

= (x+40) + (x-20) + (1/2x-20)=180

= x+40 + x-20 + 1/2x-20 = 180

=(x+x+x/2) – (40+20+20) =180

= (x+x+x/2) -80=180

= 5x/2 = 180+80

= 5x/2=250

= 5x= 250*2

= 5x = 500

= x=500/5

=x = 100

Step-by-step explanation:Hope you get it.

Please mark as Brainliest.