In how many ways can you fit all three pieces together to make shapes with line symmetry?
Using the 8 dominoes make a square where each of the columns and rows adds up to 8
Each of these solids is made up with 3 squares and a triangle around each vertex. Each has a total of 18 square faces and 8 faces that are equilateral triangles. How many faces, edges and vertices does each solid have?
Begin by looking at all the patterns that can be made by colouring in just 1 cell, then 2, then 3, and so on...