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Extra practice for Year 9 Trigonometry (Finding Sides) Worksheet — Level 3: the same skill with fresh questions.

WorksheetYear 9Level 3 · Challenge

Free Year 9 Trigonometry (Finding Sides) Worksheet — Level 3 — Practice Set 4

Practice Set 4 for Year 9 Trigonometry (Finding Sides) Worksheet — Level 3: the same skill and level with a fresh set of questions and a full answer sheet.

More practice: Set 1 · Practice Set 2 · Practice Set 3 — same skill, fresh questions, full answers.

Instant download · No sign-up · Free for personal, classroom and homeschool use

Year
Year 9
Subject
Maths
Topic
Trigonometry
Difficulty
Level 3 · Challenge
Estimated time
20 minutes
Curriculum
England National Curriculum
Questions
8
Answers
Included, with working
Format
PDF (A4), print or complete online

Students will practise

  • labelling sides relative to an angle
  • choosing the correct trigonometric ratio
  • finding unknown sides

Curriculum: England National Curriculum. We show specific outcome codes only where they have been verified against the official curriculum document.

What's next?

Completed: Year 9 Trigonometry (Finding Sides) Worksheet — Level 3 — Practice Set 4

Ready for more? Move on to Year 10 Maths.

← Easier: Level 2 · Standard

How to use this worksheet

  1. Print the PDF or complete it on screen. Write the student's name and date at the top.
  2. Read the instructions for each part together before starting. Encourage working to be shown, not just answers.
  3. Mark with the answer sheet. Compare the method, not only the final answer, and give credit for correct working.
  4. Record the score, celebrate what went well, then follow the "What's next" suggestion.

Common questions

Who is this worksheet for?

Year 9 students (typically ages 14–15) working on trigonometry. It is pitched at level 3 · challenge; an easier version is linked above.

Are the answers included?

Yes. The PDF includes a full answer sheet with the working for every question. You can also view the answers online.

How long does it take?

About 20 minutes for 8 questions. Short, regular sessions work best: two or three a week beats one long one.

Do I need to sign up to download?

No. Click Download Free PDF and it opens immediately. It is free for personal, classroom and homeschool use.

What should we do next?

Explore more Year 9 mathematics resources.

Preview

Success TutoringWorksheetsYear 9 · Mathematics · Trigonometry

Year 9 Trigonometry (Finding Sides) Worksheet — Level 3 — Practice Set 4

Name

Date

Score /

Label the sides (opposite, adjacent, hypotenuse), choose the ratio (SOH CAH TOA), then solve.

1.In a right-angled triangle, the hypotenuse is 6 cm and one angle is 65°. Find the side opposite the 65° angle, to 1 decimal place.
2.In a right-angled triangle, the side adjacent to a 20° angle is 4 m. Find the opposite side, to 1 decimal place.
3.In a right-angled triangle, the hypotenuse is 9 cm and one angle is 52°. Find the side opposite the 52° angle, to 1 decimal place.
4.In a right-angled triangle, the hypotenuse is 13 cm and one angle is 60°. Find the side adjacent to the 60° angle, to 1 decimal place.
5.In a right-angled triangle, the hypotenuse is 23 cm and one angle is 21°. Find the side opposite the 21° angle, to 1 decimal place.
6.In a right-angled triangle, the hypotenuse is 5 cm and one angle is 58°. Find the side opposite the 58° angle, to 1 decimal place.
7.In a right-angled triangle, the hypotenuse is 22 cm and one angle is 61°. Find the side opposite the 61° angle, to 1 decimal place.
8.In a right-angled triangle, the hypotenuse is 20 cm and one angle is 22°. Find the side adjacent to the 22° angle, to 1 decimal place.
Free worksheets at worksheets.successtutoring.com · © Success Tutoring · Free for personal and classroom use

Preview — the PDF contains the full resource and answer sheet.

More Year 9 trigonometry resources

  • Worksheet

    Year 9 Trigonometry (Finding Sides) Worksheet — Level 1

    Use sine, cosine and tangent to find unknown sides in right-angled triangles. Builds confidence with the core skill before adding…

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  • Worksheet

    Year 9 Trigonometry (Finding Sides) Worksheet — Level 2

    Use sine, cosine and tangent to find unknown sides in right-angled triangles. Expected-level practice for this year group. This Year 9…

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    Answers
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  • Worksheet

    Year 9 Trigonometry (Finding Sides) Worksheet — Level 3

    Use sine, cosine and tangent to find unknown sides in right-angled triangles. A challenge set for students ready to stretch further. This…

    Difficulty
    Level 3 · Challenge
    Time
    20 min
    Questions
    8 questions
    Answers
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Trigonometry in other year levels

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About this resource

Created by
Success Tutoring Maths Team
Reviewed by
Success Tutoring
Last reviewed
1 October 2026
How it was made
Generated by checked procedures

Free to print and share for personal, classroom and homeschool use. Please don't resell. Spotted an error? Let us know.