Question

the angle of triangle are (x- 30 degree ), (x-20 degree )and (x-10 degree ) find the value of x​

Answer 1

HI, HERE IS YOUR ANSWER:

(X-30)+(X-20)(X-10)=180    (TRIANGLE SUM PROPERTY)

X-30+X-20+X-10=180

3X-60=180

3X=120

X=40

HOPE IT HELPS YOU!!!!

Answer 2

Answer:

the sum of angles of triangle = 180°

therefore,

x-30 + x -20+ x -10 = 360

3x -60 = 360

3x = 420

x = 420/3

x= 140