Question

The three angles of a triangle are x,
(r +20°) and (x + 40°). Find the value
of X.​

Answer 1

Answer:

sum of all angles in traingle is 180

Step-by-step explanation:

x+x+20+x+40=180

3x=180-60

3x=120

x=40

Answer 2

Answer:

$x + x + 20 + x + 40 = 180 {}^{0} \\ 3x + 60 = 180 \\ 3x = 180 - 60 \\ 3x = 120 \\ x = \frac{120}{3} \\ x = 40 {}^{0}$