How many lessons are in Finding the Unseen Side?

13 lessons: 8.1 Reviewing Pythagoras' theorem and finding a shorter side, 8.2 Pythagoras in real problems, 8.3 The three ratios in a right-angled triangle, 8.4 Finding a side you cannot reach, 8.5 Finding the angle from two sides, 8.6 When the unknown is underneath, 8.7 Finding your way by bearings, 8.8 Looking up, looking down, 8.9 Right-angled triangles in space, 8.10 The cosine rule for any triangle, 8.11 The sine rule for any triangle, 8.12 Area without a perpendicular height, Putting it together.

Is the Finding the Unseen Side study guide free?

This page is free to read, with nothing to buy and no account to make. It sets out what the unit covers. The full guide isn't published online; it's what our tutors teach from in lessons.

Can BTA tutor Year 10 Mathematics Standard?

Yes. We tutor Year 10 Mathematics Standard one-on-one at any of our eight academies across five locations, online through Microsoft Teams, or in your home. All three cost the same hourly rate and the first consultation is free.

Year 10 Mathematics Standard · Chapter 8

Finding the Unseen Side

Year 10 Mathematics, Standard - NSW Stage 5. Finding the Unseen Side, 13 lessons, written to the NSW Mathematics syllabus.

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In this chapter

What the guide holds

Every lesson runs the same way: worked examples paired with a your-turn column, a four-stage practice ladder from fluency to exam-style questions, and full worked solutions for every question at the back of the chapter.

Includes three practice examinations on this chapter, sharing no question between them, each with its own worked solutions. Sit one and keep the other two for revision.

13 lessons

Lesson by lesson

8.1 Reviewing Pythagoras' theorem and finding a shorter side
8.2 Pythagoras in real problems
8.3 The three ratios in a right-angled triangle
8.4 Finding a side you cannot reach
8.5 Finding the angle from two sides
8.6 When the unknown is underneath
8.7 Finding your way by bearings
8.8 Looking up, looking down
8.9 Right-angled triangles in space
8.10 The cosine rule for any triangle
8.11 The sine rule for any triangle
8.12 Area without a perpendicular height
Putting it together

Year 10 Mathematics Standard

More Year 10 Mathematics Standard chapters

Common questions

Questions about this chapter

What does Finding the Unseen Side cover?: Year 10 Mathematics, Standard - NSW Stage 5. Finding the Unseen Side, 13 lessons, written to the NSW Mathematics syllabus.
How many lessons are in Finding the Unseen Side?: 13 lessons: 8.1 Reviewing Pythagoras' theorem and finding a shorter side, 8.2 Pythagoras in real problems, 8.3 The three ratios in a right-angled triangle, 8.4 Finding a side you cannot reach, 8.5 Finding the angle from two sides, 8.6 When the unknown is underneath, 8.7 Finding your way by bearings, 8.8 Looking up, looking down, 8.9 Right-angled triangles in space, 8.10 The cosine rule for any triangle, 8.11 The sine rule for any triangle, 8.12 Area without a perpendicular height, Putting it together.
Is the Finding the Unseen Side study guide free?: This page is free to read, with nothing to buy and no account to make. It sets out what the unit covers. The full guide isn't published online; it's what our tutors teach from in lessons.
Can BTA tutor Year 10 Mathematics Standard?: Yes. We tutor Year 10 Mathematics Standard one-on-one at any of our eight academies across five locations, online through Microsoft Teams, or in your home. All three cost the same hourly rate and the first consultation is free.

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