Here is a selection of different shapes. Can you work out which ones are triangles, and why?
Can you sketch triangles that fit in the cells in this grid? Which ones are impossible? How do you know?
Sara and Will were sorting some pictures of shapes on cards. "I'll collect the circles," said Sara. "I'll take the red ones," answered Will. Can you see any cards they would both want?
This activity focuses on similarities and differences between shapes.
You are only given the three midpoints of the sides of a triangle. How can you construct the original triangle?
