Answer:
x = 18
Step-by-step explanation:
Since both right triangles are similar, therefore:

Cross multiply




Subtract 780 from both sides





x + 23 = 0
x = -23
Or
2x - 36 = 0
2x = 36
x = 18
The intent of the construction appears to be to produce tangents from point P to the circle O. There are several possible next steps:
• Name the point of intersection just created between the arc and circle O
• Draw a line (or segment) between points P and J
• Draw a line (or segment) between point P and the intersecting point just created on circle O.
(49+49+56+62+60+50+59) / 7 = 55