SSS2 Maths Quiz 18.1 – Simplification of Fractions

What is the sine of a right-angled triangle defined as?

A) Adjacent / Opposite

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B) Opposite / Adjacent

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C) Adjacent / Hypotenuse

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D) Opposite / Hypotenuse

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What is the cosine of an angle in a right triangle?

A) Opposite / Hypotenuse

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B) Adjacent / Hypotenuse

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C) Hypotenuse / Adjacent

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D) Opposite / Adjacent

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What is the tangent of an angle in a right-angled triangle?

A) Hypotenuse / Opposite

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B) Hypotenuse / Adjacent

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C) Adjacent / Hypotenuse

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D) Opposite / Adjacent

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If \(\sin \theta = \dfrac{3}{5}\), find \(\cos \theta\) given that \(\theta\) is acute.

A) \(\dfrac{3}{4}\)

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B) \(\dfrac{4}{5}\)

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C) \(\dfrac{5}{4}\)

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D) \(\dfrac{2}{5}\)

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If \(\tan \theta = \dfrac{4}{3}\), find \(\sin \theta\).

A) \(\dfrac{4}{5}\)

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B) \(\dfrac{4}{\sqrt{25}}\)

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C) \(\dfrac{5}{4}\)

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D) \(\dfrac{3}{4}\)

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What is the value of \(\sin 60^\circ\)?

A) \(\dfrac{1}{2}\)

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B) \(\dfrac{\sqrt{2}}{2}\)

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C) \(\dfrac{\sqrt{3}}{2}\)

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D) 1

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The cosine of \(90^\circ\) is:

A) 1

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B) \(\dfrac{1}{2}\)

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C) \(\dfrac{\sqrt{3}}{2}\)

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D) 0

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If \(\cos \theta = 0.6\), what is \(\sin^2 \theta + \cos^2 \theta\)?

A) 0.36

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B) 0.8

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C) 1.2

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D) 1

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What is the reciprocal of sine called?

A) Cotangent

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B) Cosine

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C) Tangent

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D) Cosecant

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Which of the following is always true for any angle \(\theta\)?

A) \(\sin \theta = \cos \theta\)

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B) \(\tan \theta = \cos \theta\)

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C) \(\sin^2 \theta + \cos^2 \theta = 1\)

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D) \(\tan^2 \theta + 1 = \cos^2 \theta\)

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SSS2 Maths Quiz 18.1 – Simplification of Fractions

SSS2 Maths Quiz 18.1 – Simplification of Fractions

Noah Wasiu July 13, 2025

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