Learn how to solve for the lengths of the sides and the measures of the angles of a triangle using the law of cosines. The ...

Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent ...

Click to see a step-by-step guide. STEP 1: Use the ruler to draw a diagonal line from the bottom right corner of the paper to the top left corner. Mark the 90° right angles in the bottom left and top ...

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 ...