Grade 3 Math — Shapes and symmetry
Count the sides and corners of a shape, name the parts of a solid, find a line of symmetry, and cover a shape with smaller shapes.
Name: ________________________
Before you start
Here is a box drawn as a solid. Find a face, an edge and a corner on it.
- 1. A face
- 2. An edge
- 3. A corner
A corner is the one place where three edges come together at a point.
Take a tile from the tray and lay it on the hexagon. Cover the whole hexagon with one kind of tile, then clear it and try another kind.
- Triangle, covers 1 triangle
- Rhombus, covers 2 triangles
- Half-hexagon, covers 3 triangles
- Hexagon, covers 6 triangles
Six triangles, three rhombuses or two half-hexagons — every one of them fills the very same space.
1.Which shape has no corners?
- a) Square
- b) Triangle
- c) Rectangle
- d) Circle
2.Tap the shape where the line folds it exactly in half.
Write the number of the part.
3.Half of this hexagon is already covered. Cover the rest of it.
Draw lines inside the shape to show how the tiles below cover it.
- Triangle, covers 1 triangle
- Rhombus, covers 2 triangles
- Half-hexagon, covers 3 triangles
4.Which letter has a line of symmetry straight down the middle?
- a) A
- b) F
- c) P
- d) J
5.Match each shape to how many sides it has.
- Triangle
- Square
- Pentagon
- Hexagon
- 5
- 3
- 4
- 6
6.Sort each shape by whether it is flat or solid.
Groups: Flat shape · Solid shape
- Square
- Circle
- Sphere
- Cube
7.How many corners does a triangle have?
8.Put these shapes in order, fewest sides first.
- Triangle
- Hexagon
- Pentagon
- Square
Answer key — Grade 3 Math — Shapes and symmetry
- 1. d) Circle
- 2. 1 — The square
- 3. any covering — e.g. 1 half-hexagon
- 4. a) A
- 5. Triangle → 3; Square → 4; Pentagon → 5; Hexagon → 6
- 6. Square → Flat shape; Cube → Solid shape; Circle → Flat shape; Sphere → Solid shape
- 7. 3
- 8. 1. Triangle 2. Square 3. Pentagon 4. Hexagon