all four please The object shown below have been rotated abo

all four please!

The object shown below have been rotated about one of the axes shown. Indicate the amount of rotation by inserting the appropriate arrow coding in the space provided.

Solution

1) It is rotated by 180 degree about the Z axis

2) It is rotated by 270 degree about the X axis

3) It is rotated by 180 degree about the Y axis

4) It is rotated 270 degrees ( 90 degree anticlockwise) about the Z axis

This question is all about visualisations. Imagine rotating the body in different directions and visualise its shape. You will get the answer. Practise visualising and it will make you perfect