← Unit 3: Measurement
Mathematics · Grade 9
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Learning to Learn
Pythagoras' Theorem and Trigonometry — Key Terms
Match each term to its definition.
Hypotenuse
— match —
The longest side of a right-angled triangle, opposite the right angle.
The rule that the square on the hypotenuse equals the sum of squares on the other two sides.
A ratio of two sides of a right-angled triangle linked to an angle: sine, cosine or tangent.
A memory aid for sine, cosine and tangent in terms of opposite, adjacent and hypotenuse.
Pythagoras' theorem
— match —
The longest side of a right-angled triangle, opposite the right angle.
The rule that the square on the hypotenuse equals the sum of squares on the other two sides.
A ratio of two sides of a right-angled triangle linked to an angle: sine, cosine or tangent.
A memory aid for sine, cosine and tangent in terms of opposite, adjacent and hypotenuse.
Trigonometric ratio
— match —
The longest side of a right-angled triangle, opposite the right angle.
The rule that the square on the hypotenuse equals the sum of squares on the other two sides.
A ratio of two sides of a right-angled triangle linked to an angle: sine, cosine or tangent.
A memory aid for sine, cosine and tangent in terms of opposite, adjacent and hypotenuse.
SOH-CAH-TOA
— match —
The longest side of a right-angled triangle, opposite the right angle.
The rule that the square on the hypotenuse equals the sum of squares on the other two sides.
A ratio of two sides of a right-angled triangle linked to an angle: sine, cosine or tangent.
A memory aid for sine, cosine and tangent in terms of opposite, adjacent and hypotenuse.
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