3D shapes

Shapes & nets

Name: ______________________________Date: ______________Score: ______ / 20

1.
What is a compound 3D shape?
1. AA shape made by joining two or more simple 3D shapes together
2. BA shape that has been cut exactly in half
3. CA flat shape drawn on isometric paper
4. DAny shape that has been coloured in
2.
How many faces does a cube have?
3.
How many faces does a triangular prism have?
4.
What are the faces of a square-based pyramid?
1. A4 triangles and 1 square
2. B2 triangles and 3 rectangles
3. C6 squares
4. D5 rectangles
5.
How many squares are in the net of an open cube (a box with no lid)?
6.
There is only one possible net for a cube.
True False
7.
A hexagonal prism has 2 hexagon faces and one rectangle for each side of the hexagon. How many faces does it have in total?
8.
To find the surface area of a shape you add up the areas of all its faces.
True False
9.
A cube has sides of 2 cm. Each face is a square of area 2 × 2 = 4 cm². What is the surface area of the cube?
cm²
10.
A single cube is a compound shape.
True False
11.
A triangular prism has more faces than a cube.
True False
12.
How many of a square-based pyramid's faces are triangles?
13.
A large cuboid has a small cube joined on top of it. What kind of shape is this?
1. AA compound shape
2. BA simple shape
3. CA net
4. DA single cube
14.
How many vertices does a triangular prism have?
15.
How many vertices does a cube have?
16.
How many edges does a square-based pyramid have?
17.
How many faces are in the net of a cube?
18.
The net of a pentagonal prism has 7 faces.
True False
19.
The net of a cuboid has 6 faces.
True False
20.
A net made of 1 square and 4 triangles folds into which shape?
1. ACone
2. BSquare-based pyramid
3. CHexagonal prism

Answer key

3D shapes — Shapes & nets

1.A. A shape made by joining two or more simple 3D shapes together
2.6
3.5
4.A. 4 triangles and 1 square
5.5
6.False
7.8
8.True
9.24 cm²
10.False
11.False
12.4
13.A. A compound shape
14.6
15.8
16.8
17.6
18.True
19.True
20.B. Square-based pyramid