Lesson details

Key learning points

  1. In this lesson, we will learn how to correctly label a right-angled triangle, and identify the correct trigonometric ratio to use.

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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4 Questions

Q1.
Has this triangle been correctly labelled?
Correct answer: No
Yes
Q2.
Why has this triangle been incorrectly labelled?
Adjacent and opposite need switching
Hypotenuse and opposite need switching
It’s not incorrect
Correct answer: None of these
Q3.
Which is the correct trigonometric ratio to use to calculate length y?
Cosine
Correct answer: Sine
Tangent
Q4.
Which trig ratio would I use to calculate the diameter of this circle?
Correct answer: cosine
sine
tangent

Lesson appears in

UnitMaths / Trigonometry 1