The value of x is:
xo
20°
300
20°
30°.
0000
50°.
60°

x = 50°

Step-by-step explanation:

x + 20° + 30° = 180°

x = 180° - 20° - 30°

x = 130°                   (This one is other x)

x + 130° = 180°

x = 180° - 130°

x = 50°

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.