2 free trigonometry resources for Year 9: 1 worksheets, 1 study guide. Answers included.
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Sine, cosine, tangent and solving triangles. In Year 9, Year 9 students solve more complex equations, work with linear graphs, meet Pythagoras' theorem and trigonometry, and expand binomials.
Students will practise: understanding how to label the hypotenuse, opposite and adjacent sides relative to an angle; choosing the correct trigonometric ratio from the sides involved; finding an unknown side length in a right-angled triangle; finding an unknown angle using inverse sine, cosine and tangent; labelling sides relative to an angle; choosing the correct trigonometric ratio; finding unknown sides.
Printable practice with an answer sheet.
Use sine, cosine and tangent to find unknown sides in right-angled triangles. Builds confidence with the core skill before adding…
Formulas and rules at a glance.
A compact reference for right-angled triangle trigonometry in Year 9: labelling the opposite, adjacent and hypotenuse, choosing sine,…
Sine, cosine, tangent and solving triangles. At Year 9, our resources focus on: understanding how to label the hypotenuse, opposite and adjacent sides relative to an angle; choosing the correct trigonometric ratio from the sides involved; finding an unknown side length in a right-angled triangle; finding an unknown angle using inverse sine, cosine and tangent.
Read the study guide first, then start with the Level 1 or Level 2 worksheet. Finish with the topic test.
Yes — every worksheet has an answer sheet. Maths answer sheets show the working; English tasks include model answers or success criteria.
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