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Subjects / LC Mathematics / Geometry and Trigonometry

Pythagoras and right-angled trigonometry

Use Pythagoras' theorem and sin, cos and tan to solve right-angled triangles, including angles of elevation.

5th Year6th Year HigherOrdinary
15practice questions

Multiple choice: 3 · Numeric answer: 12

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Numeric answerPaper 2 – Geometry and Trigonometry
A right-angled triangle has shorter sides of length 20 cm and 48 cm. Find the length of the hypotenuse.
θhypotenuseadjacent to θopposite
Whole numbers, decimals (2.5) or fractions (3/4).
Hint 1

Use Pythagoras' theorem: h² = a² + b².

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