Or search by topic
Thank you to everybody who sent us their ideas about what the shape could be.
Raphael and Priyam from Green Lane Primary in the UK shared their reasoning with us:
The first card we turned over said the shape had 'Exactly two lines of symmetry'. A rectangle and an oval are the only shapes with two lines of symmetry. Next we got 'Fewer than five vertices', this didn't help much because both shapes have fewer than fiver vertices. The next card said it had 'More than three sides', this meant it was a rectangle as an oval is a continuous shape and doesn't have any sides.
Well done for narrowing down the possibilities each time you drew a card! Raphael and Priyam think they have found the shape using only the information on three cards. I wonder if there were any other shapes it could have been using the information on those cards? Are there any other shapes with two lines of symmetry that Raphael and Priyam didn't think of?
Freya from Millbrook Primary in the UK looked at all of the cards and agreed with Raphael and Priyam:
The answer to What Am I is a rectangle.
I wonder if Freya could have worked that out using fewer than six cards?
If you have any other ideas about what the shape might be, or if you think not all of the cards are helpful, we would love to hear from you. Email us to share your ideas with us.