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Right Angles Resources

An engineer designs a slide for a playground. As shown in the diagram, the slide AB is 20 cm long. Angle ACB is 90°. The gradient of the slide is required to be greater than 1/2 but less than 1. Find...

Lessons

Introduction to Angles We begin our study of angles by learning what they are, how to name them, and ways in which angles can be classified. These concepts are explained below. Angle An angle is formed when two rays meet at a common endpoint, or vertex. The two sides of the angle are the rays, and the point that unites them is called the vertex. The vertices are shown... read more