Think of a whole number 1 through 10 2. BE and CF are two equal altitudes of a triangle ABC. To build the triangle start with 1 at the top then continue placing numbers below it in a triangular pattern.
Magic Math Trick x18 1.
Number Sequences -. KS2 Maths Triangles 5 12 customer reviews. BE and CF are two equal altitudes of a triangle ABC. Magic Math Trick x18 1.