Q1:

How many invariant points are there usually under a rotation ? 
A. 0 B. 1 C. 2 D. infinite 
Answer 1:


Q2:

A rotation of 90° is also called a 
A. halfturn B. quarter turn C. threequarter turn D. full turn 
Answer 2:


Q3:

P' is the image of (3, 4) after a rotation of 180°about the origin. The coordinates of P' are 
A. (4, 3) B. (3, 4) C. (4, 3) D. (4, 3) 
Answer 3:


Q4:

What is the angle of rotation that maps the triangle AOB onto triangle COD? 
A. 180° B. 90° C. 90° D. 180° 
Answer 4:


Q5:

In the diagram above, what angle of rotation would map the bottom triangle onto the top one? 
A. 180° B. 90° C. 90° D. 180° 
Answer 5:


Q6:

A rotation of  45° about (0, 0) is equivalent to a rotation about (0, 0) of: 
A. 135° B. 45° C. 315° D. 225° 
Answer 6:


Q7:

A rotation of 45°followed by a rotation of 45°about the same point is equivalent to 
A. A halfturn B. A quarterturn C. A rotation of 360° D. A rotation of 90° 
Answer 7:


Q8:

A shape and its image after rotation are 
A. congruent B. different C. parallel D. perpendicular 
Answer 8:


Q9:

A line and its image under a rotation of 180° are 
A. parallel B. perpendicular C. at right angles D. unmoved 
Answer 9:


Q10:

The image of the point (2, 1) after a rotation of 180°, centre (0, 0), is: 
A. (2, 1) B. (2, 1) C. (2, 1) D. (2, 1) 
Answer 10:

