What is the size of angle x?
70˚
55˚
110˚
What is the exterior angle of a regular hexagon?
60˚
80˚
90˚
What is the sum of the interior angles of a regular hexagon?
720°
900°
1080°
What is the interior angle of a regular hexagon?
180°
144°
120°
What is the exterior angle of a regular octagon?
60°
45°
135°
An irregular pentagon has four interior angles of 60°, 80°, 100° and 125°. What is the size of the fifth interior angle?
85°
175°
265°
An irregular octagon has one interior angle of 130°. What is the size of the corresponding exterior angle?
50°
150°
230°
What does tessellation mean?
Fits together with no gaps
Shapes that make a picture
Patterns
Jamie wants to create two separate tessellations: one from octagons and one from decagons. Help Jamie work out which are possible.
Octagons
Both octagons and decagons
Neither of the two
Which of the following two shapes can tessellate?
Shape A
Shape A and B
Neither shape A nor B