How many lessons are in The Right-Angle Rule?

8 lessons: 8.1 Review: squares, square roots and right-angled triangles, 8.2 Discovering Pythagoras' theorem, 8.3 Finding the hypotenuse, 8.4 Finding a shorter side, 8.5 Exact and approximate answers with Pythagoras, 8.6 The converse of Pythagoras and Pythagorean triads, 8.7 Solving practical problems with Pythagoras, Putting it together.

Is the Right-Angle Rule 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 8 Mathematics?

Yes. We tutor Year 8 Mathematics 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 8 Mathematics · Chapter 8

The Right-Angle Rule

Year 8 Mathematics, NSW Stage 4. The Right-Angle Rule, 8 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.

8 lessons

Lesson by lesson

8.1 Review: squares, square roots and right-angled triangles
8.2 Discovering Pythagoras' theorem
8.3 Finding the hypotenuse
8.4 Finding a shorter side
8.5 Exact and approximate answers with Pythagoras
8.6 The converse of Pythagoras and Pythagorean triads
8.7 Solving practical problems with Pythagoras
Putting it together

Year 8 Mathematics

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Common questions

Questions about this chapter

What does The Right-Angle Rule cover?: Year 8 Mathematics, NSW Stage 4. The Right-Angle Rule, 8 lessons, written to the NSW Mathematics syllabus.
How many lessons are in The Right-Angle Rule?: 8 lessons: 8.1 Review: squares, square roots and right-angled triangles, 8.2 Discovering Pythagoras' theorem, 8.3 Finding the hypotenuse, 8.4 Finding a shorter side, 8.5 Exact and approximate answers with Pythagoras, 8.6 The converse of Pythagoras and Pythagorean triads, 8.7 Solving practical problems with Pythagoras, Putting it together.
Is the Right-Angle Rule 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 8 Mathematics?: Yes. We tutor Year 8 Mathematics 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.

Still deciding? Book a free consultation and we will talk through where your child is up to.

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