Question

The angles of a triangle are (x-20), (X-10) and Xº find the value of X?​

Answer 1

Answer:

angle is a Triangle sums up to 180⁰

i.e. X-20+(X-10)+(X)=180⁰

3x-30=180⁰

=>3x=180+30

=>3x=210

=>X=210/3

=>X=70⁰

Answer 2

Answer:

x = 70

Step-by-step explanation:

Sum of all angles = 180

(x-20) + (x-10) + xº = 180

x-20 + x-10 + x = 180

3x - 30 = 180

3x = 180 + 30

3x = 210

x = 210/3

x = 70