Find the radius of the circle.
(x – 3)2+(9 + 7)2= 16

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

Tan198=asin164=? how to solve this? ?