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 ...

Trigonometry close trigonometryThe study of sides and angles in triangles. can be used to find a missing angle in a right-angled triangle when two sides are known. An understanding of the three ...

In this maths lesson, students will explore how the sine rule allows possible triangles to be solved, given combinations of two angles and a side or two sides and an angle that is not in between. They ...

This activity is perfect for upper primary and lower secondary students. It allows them to practise calculating angles in isosceles and scalene triangles. Note that unlike most treasure hunts, this ...

Big Idea – We can describe, measure, and compare spatial relationships. to build on students' knowledge of triangle and develop students' reasoning with properties of different classes of triangles to ...

Everyone learns the number one rule about triangles in high school: the angles of a triangle add up to 180 degrees. But did you know that sometimes they don't? Triangles are much more interesting than ...