Construction Blank

Essential tools for construction only. Last two tools are measurement tools to check the properties of your construction.

Quadrilaterals

Circle Theorems (ii)

The point O marks the centre of the circle. AF is a diameter of the circle. AE and DE are tangents to the circle.

Trigonometry Introduction

Control the angle theta and the hypotenuse to create a range of specified triangles.
Click on adj, opp

Cosine Rule Question Generator

Move the three points around to create as many problems as required with the same solution for angle theta.

Chords on a Circle

Chord Lengths

Information