The point P(-3, 12) is reflected in x-axis to point Q. And point Q is then rotated through 180° about origin to point R. Write the co-ordinates of points Q and R.

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 an isosceles trapezium is :

1. 0

2. 2

3. 4

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)