Question

The angles of a triangle are (x - 40) , (x - 20) and (1/2x - 10).Find the value of 'x'.

Answer 1

since angle sum property of triangle is 180°
so (x-40)+(x-20)+(1/2x-10)= 180°
2x+1/2x-70= 180
5/2x= 250
x= 250/5/2
= 250×2/5
= 50×2
x=100

Answer 2

Answer:

I hope it is helpful.......................