Question

the of a triangle are x,y and 40°.the difference between two angles x and y is 30° . find x and y

Answer 1

As the sum of all angles of triangle is 180,

40+2y+(x-y) =180

40+2y+30=180

2y=180+70

2y=110

y=110/2

Y=55

Then put the value of y in x-y

x-y=30

x-55=30

x=30+55

x=85

I hope this will help you

Answer 2

let y be x+30
then
x+(x+30)+40=180
2x=180-70
x=110/2
x=55
then y= x+30 = 85