Q113Multiple choice
In Fig. 5.66, two parallel lines l and m are cut by two transversals p and q. Determine the values of x and y. Fig. 5.66 1. The game pool belongs to billiard sports and generally played with a cue stick which is used to strike billiard balls, moving them around a cloth-covered billiards table with six pocket bounded by rubber cushions. The angle at which a pool ball hits the side of a table has the same 15-04-2018 measure as the angle at which it bounces off the side. This is shown in the drawing at the right. The marked angles have the same measure, and the arrow shows the ball’s path. In Parts
This question refers to a figure in the original PDF.
- (a)–(c), trace the drawing. Then use your protractor to find the path the ball will take when it bounces off the side. Tell whether the ball will go into a pocket or hit another side. (Draw just one bounce.) (a) When light hits a mirror, it behaves in the same way as a pool ball hitting the side of a table. If light hits a mirror at an angle, it bounces off at the same angle. In physics, this law is often
- (b)stated as “the angle of incidence = the angle of reflection.”
- (c)
- (d)Try to trace this drawing. Draw a path for which the ball will bounce off a side and land in the lower-right pocket. 15-04-2018 2. Crossword Puzzle Fill the crossword puzzle with the help of following clues: Across 1. Two lines in a plane which do not intersect each other. 2. A pair of adjacent angles having their non common arms opposite rays. 3. A pair of angles having a common vertex, a common arm and their interiors do not overlap. 4. The two lines are intersected by a line at distinct points. 5. The sum of two angles is 90°. Down 6. Sum of two angles is 180°. 7. The two lines in a plane intersect each other at one and only one point are called _________ . 8. When two parallel lines intersected by a transversal at two distinct points then the _________ angles are equal. 15-04-2018