The Sine Rule (Leaving Cert Mathematics): Quizzes

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The Sine Rule
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12 questions from this quiz

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Which types of triangles can the Sine Rule be applied to?

Any triangle

What minimum information is needed to use the Sine Rule?

One side-angle pair + one other piece

When finding a side using the Sine Rule, where should sides be positioned in the fractions?

On top

When finding an angle using the Sine Rule, where should angles be positioned in the fractions?

On top

In the Sine Rule, which angle is paired with side aa?

The opposite angle AA

Which calculator function finds an angle from its sine value?

sin⁡−1\sin^{-1} (inverse sine)

What calculator mode must be used when working with the Sine Rule?

Degree mode

If two angles in a triangle are 53°53° and 69°69°, what is the third angle?

58°58°

Which formula gives the area of a triangle when two sides and an included angle are known?

12absin⁡C\frac{1}{2}ab\sin C

How should sides and angles be labeled in a triangle for the Sine Rule?

Sides aa, bb, cc opposite angles AA, BB, CC

Which trigonometry method was primarily used before learning the Sine Rule?

SOH-CAH-TOA for right-angled triangles

What relationship does the word form of the Sine Rule describe?

Side to sine of opposite angle ratio

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