Look at this rectangle.
Lina wants to draw a hexagon with the same perimeter as the rectangle. What is the length of the side of Lina’s hexagon?
A trapezium is made of a rectangle and two right-angled triangles.
What is the area of the trapezium?
The side lengths of these regular polygons have been given. Four have the same perimeter. Which one has a different perimeter from the others?