In circle O, ST is a diameter. What must be the value of x? 22.0 25.0 25.4 37.2

the answer is x=25.0

In the figure that the half of the cirlce is divided by 3 angles. angles (2x + 8), (3x - 14) and (3x - 14). the total angle of a circle is 360, since it only half of the cirlce that is divided then angle of half circle is 180. to solve for x

(2x + 8) + (3x - 14) + (3x - 14) = 180

8x - 20 = 180

8x = 180 + 20

8x = 200

x = 200/8

x = 25