Working with Sketch 3 Project Sketch 3 on the screen and ask the students to explore which coloured triangles could fit into the given triangle outlines. For this sketch, all the outlines look like ...

As a new episode of the fantastic YouTube channel Numberphile explores, the Platonic solids made of equilateral triangles start to do some bizarre things when you attempt to cram in more triangles.

How do you make a triangle shaped pizza with triangle shaped toppings? Ambrose uses cuts from a circular base to form an equilateral triangle explaining the properties of the shape. Suitable for ...

Thanks to one of the most iconic shapes in history, the Ti-Scout fits nicely in the hand and tackles a range of essential ...

An equilateral triangle has three lines of symmetry. There are three ways the triangle can be cut into a pair of mirrored halves. Each line of symmetry goes through a vertex and the midpoint of ...

Inverted Triangle Symbolism The inverted triangle is simply an equilateral triangle turned upside down. In alchemy, it means "water," which is emblematic of purification, healing and peace.

Working with Sketch 5 Project Sketch 5 on the screen. Introduce the term scalene (pink triangle) and equilateral (outline). Have one student drag the scalene triangle to review its properties. Have ...