Description
Years: 9- 11
Right Triangle Trigonometry Workbook – Finding Unknown Angles
A clear, structured workbook designed to help students confidently find unknown angles in right‑angled triangles using SOHCAHTOA.
Scaffolded notes + worksheets + solutions + folded notes.
There are two styles of workbooks:
- Workbook A: scaffolded notes (filled in the blanks) and worksheets.
- Workbook B: scaffolded notes (completed notes) and worksheets.
Answer Keys are also included.
Learning Outcomes:
– Select and use appropriate trigonometric ratios to find unknown angles
– Use calculator skills to find angles
– Apply trigonometry to solve right-angled triangle problems.
-Explain and use the relationship between the sine and cosine of complementary angles.
Australian Curriculum:
- Apply trigonometry to solve right-angled triangle problems (ACMMG224)
- review the use of the trigonometric ratios to find the length of an unknown side or the size of an unknown angle in a right-angled triangle (ACMGM034)
- Apply the cosine and sine ratios to find unknown angles and sides in right-angled triangles (ACMEM119)
- Review sine, cosine and tangent as ratios of side lengths in right-angled triangles (ACMMM028)
Perfect for classwork, homework, revision, or relief lessons.
The workbook is clean, student‑friendly, and ideal for teachers who want ready‑to‑use practice without extra preparation.
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