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Grade 9 · Math · Unit 9 of 11

Line & Rotation Symmetry

Fold lines, turns and the order of symmetry.

What your child practises

Practises lines of symmetry and rotation symmetry (order and angle of rotation) in polygons, letters and designs.

Manitoba Curriculum learning outcome: 9.SS.5 · line and rotation symmetry

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    What is the smallest turn angle for a regular pentagon?

    • 60°
    • 108°
    • 72°

  2. Question 2

    How many lines of symmetry does an equilateral triangle have?

    • 3
    • 6
    • 1

  3. Question 3

    A parallelogram that is not a rectangle has rotation symmetry of order…

    • 0
    • 4
    • 2

  4. Question 4

    Which letter has a line of symmetry but no rotation symmetry (in a plain font)?

    • N
    • Z
    • T

  5. Question 5

    What is the smallest turn angle for a regular octagon?

    • 60°
    • 45°
    • 90°

  6. Question 6

    A shape has order 5 rotation symmetry and 5 lines of symmetry. Which shape could it be?

    • an isosceles triangle
    • a rectangle
    • a regular pentagon

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