What is a necessary step for constructing parallel lines? draw a line that intersects the first line using a straightedge. draw a ray that intersects the first line at a right angle using a straightedge. draw arcs on either side of a given point on the line. draw arcs on either side of a given point off the line.

Abilliard ball is struck by a cue. it travels 1 0 0 cm 100cm before ricocheting off a rail and traveling another 1 2 0 cm 120cm into a corner pocket. the angle between the path as the ball approaches the rail and the path after it strikes the rail is 4 5 ∘ 45 ∘ . how far is the corner pocket from where the cue initially struck the ball? do not round during your calculations. round your final answer to the nearest centimeter.