Posted on by Alison Kiddle

Daily Lego Maths: Day 7

Here is a ‘circle’ made out of Lego. It’s not very circular!
What questions might a mathematician ask?

An approximation to a circle made from red and yellow 2 by 2 lego bricks. The pattern has mirror symmetry horizontally and vertically. There are ten rows of bricks, with 2, 6, 8, 8 and 10 bricks in the first five rows and then descending 10, 8, 8, 6, 2. The boundary of the shape is yellow and the middle is red.


What is the ‘radius’ of this circle? What is the area?
How could you make a better circle out of Lego?

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