Draw the given side of the triangle using a ruler. Use a protractor to measure the given angle at the left-hand endpoint of the given side. Mark the angle and then draw a line from the endpoint ...

So, what's with the biscuits? Oh a triangulator machine! Very cool! Right, there are four different types of triangle. First, here's an isosceles triangle, it has two equal length sides and two equal ...

The ancient Babylonians understood key concepts in geometry, including how to make precise right-angled triangles. They used this mathematical know-how to divide up farmland – more than 1000 years ...