2.4 Trigonometry

2.4 resource folder

2.4 Trigonometry

Welcome to the 2.4 Trigonometry page at Takapuna Grammar School. To the left (or below on a small screen) you have a public course drive with any publicly shared resources. The goal is the add more content to this page in the future.

Curriculum content



Trigonometry in right angled triangles. Finding the lengths. Video tutorials. Practice

Trigonometry in right angled triangles. Finding the angles. Practice

More trig videos if the others were no good. Video summary.

Harder questions. Multi-step questions


Cosine rule. Video 1.

Sin rule. Video tutorial 1. Video tutorial 2

Mulitstep problems in cosine and sin rules. Video example 1. Video example 2. Video example 3

Area of non-right-angled triangle Area of non-right angled triangle

Area of a sector using degrees Area of sector

Arc length using degrees Arc length using degrees