The point P(-7, 9) is rotated through 90° about origin in the anticlockwise direction to get point Q. If Q is reflected in y-axis to point R, write the co-ordinates of Q and R.

The number of line(s) of symmetry of a trapezium is:

1. 0

2. 1

3. 2

4. none of these

The reflection of point (0, -8) in origin is:

1. (0, -8)

2. (0, 8)

3. (8, 8)

4. (-8, 0)

The point (-5, -6) is rotated about origin by 90° in the clockwise direction. The resulting part is:

1. (-6, 5)

2. (5, 6)

3. (0, 5)

4. (6, -5)