100 100

200 200

400 400

300

400

Sim

300 300 300

200

400

200

100

500 500 500 500

100

Rotations Sym Whatever

Row 1, Col 1

8:2 or 4:1 … the scale factor is 4

1,2

1,3

1,4

2,1

Tina’s shadow is 2.4 mand the first tree’sshadow is 10.8 m.

What is the height ofthe tree?

2,2

2,3

What is the break-down & absorption of food in the intestine ?

2,4

3,1

3,2

3,3

Rotational symmetry

A shape has rotational symmetry when it coincides with itself after

a rotation of less than 360° about its centre.

3,4

4,1

Are any of these quadrilaterals similar?

Justify your answer.

4,2

4,3

order of rotation.

The number of times the shape coincides with itself, during a rotation of 360°, is the

order of rotation.

4,4

5,1

5,2

5,3

angle of rotation symmetry

the angle of rotation symmetry = 360° order of rotation

5,4