Math 9 Journal Entries

Learning Guide 12

Expectation 1: Demonstrate an understanding of line symmetry.

Define Line of Symmetry:

Draw a figure that has line symmetry. Draw the line of symmetry on the figure.

Expectation 2: Demonstrate an understanding of rotation symmetry.

Define the following terms:

Rotation Symmetry:

Order of Rotation:

Angle of Rotation:

Sketch an example of a figure that has rotation symmetry. Show the centre of rotation, the order of rotation and the angle of rotation.

Expectation #3: Determine the surface area of 3-D objects.

Explain how you would find the surface area of a 3-D object. Give an example to explain.