Choose Trigonometric Ratios
Relate sides to a chosen acute angle and use trigonometric ratios. A complete set with exploration, practice and application. Use the linked unit for the learning sequence and teaching guide.
Continue this learning sequence
Unit goals and teaching guide →Independent activity · About 25 minutes · Pencil · Geometry
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Page layout
0 practice pages · 0 answer pages. Pages are added automatically when needed. Question content and answer keys stay together.
About this practice
Grade 10 · math · Matching answer key included · US Letter and A4
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Teaching guide, sample answers and curriculum references
Before you begin
Review the key words and representations in Choose Trigonometric Ratios. Use the Explore activity to check readiness before removing support.
How to use this worksheet
- Begin with: Find sin A.
- Connect the response to: Find tan A.
- Ask students to apply the idea: For the other acute angle, what is the sine ratio in the 3 4 5 triangle?
A common mistake to discuss
Accepting an answer without checking whether it uses the material and satisfies the requested relationship or criteria.
What to practice next
Continue to Choose Trigonometric Ratios: Apply and Create.
Original instructional material written for this practice.
Published 2026-10-04; updated 2026-10-04. Original MakeWorksheet practice. Automated consistency checks support publication; independent subject-specialist review is not recorded. Read our editorial policy.
Continue practicing
Practice previewChoose Trigonometric Ratios: Apply and Create
Apply · Independent · 15 min
Relate sides to a chosen acute angle and use trigonometric ratios. A focused apply activity. Use the linked unit for the learning sequence and teaching guide.
Practice previewChoose Trigonometric Ratios: Explore and Explain
Explore · Independent · 10 min
Relate sides to a chosen acute angle and use trigonometric ratios. A focused learn activity. Use the linked unit for the learning sequence and teaching guide.
Practice previewChoose Trigonometric Ratios: Practice Independently
Practice · Independent · 10 min
Relate sides to a chosen acute angle and use trigonometric ratios. A focused practice activity. Use the linked unit for the learning sequence and teaching guide.
Practice previewGeometry & Trigonometry: SOH CAH TOA & Right Triangles
Practice · Independent · 15 min
Calculate sine, cosine, and tangent ratios, solve for unknown sides and acute angles, and apply angles of elevation in authentic right triangle problems.