Te reo Māori terms
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Learning objective overview
Master Teaching Guide coverage for this objective.
Current NZC (2007)
GM6-6
New NZC (2026)
NZC26-P4-GEO-SHP-P-Y10-01
Resources
- Finding Angles Using Sine Rule Practice GridQuestions PDF · Answers
Terminology
- Sine Rule
- opposite side-angle pair
- non-right-angled triangle
- inverse sine
- angle sum of a triangle
- degrees
Task goals
- Identify the side opposite each labelled angle.
- Select a complete known side-angle pair before substituting into the Sine Rule.
- Rearrange the Sine Rule to make the sine of the missing angle the subject.
- Use inverse sine to calculate an acute missing angle.
- Use the angle sum of a triangle to calculate a remaining angle where needed.
- Round only the final answer and check that the angle size is reasonable for its opposite side.
Where this fits
What leads into this objective, and where it goes next.
Before
Introduction to Trigonometry: Finding an Angle
Applications of Trigonometric Ratios: Finding Angles
Applications of Trigonometric Ratios: Finding Lengths
You are here
Using the Sine Rule to find missing angles
Next
Year 10 is the last year of this phase — the curriculum lists nothing after this. No extension resources on the site yet.
Also under GM6-6:
For teachers
Need the fuller teaching notes for this objective? Open the Teacher guidance PDF.