Practice Trigonometric Ratios (2) - Trigonometry Basics - IB 10 Mathematics

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10 questions

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6 sample questions

Question 1.
What is the formula for sine in a right triangle?
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Think of SOH from SOHCAHTOA.
Question 2.
If the opposite side is 3 cm and the hypotenuse is 5 cm, what is sin θ?
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Use the sine formula.
3Question 3.
What is the sine ratio defined as?
- Opposite/Hypotenuse
- Adjacent/Hypotenuse
- Opposite/Adjacent
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Think of the mnemonic SOH.
4Question 4.
True or False: The opposite side is used to define cosine.
- True
- False
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Remember the definition of cosine.
Question 5.
In a right triangle, if one angle is 60° and the hypotenuse is 12 cm, calculate the lengths of both the opposite and adjacent sides.
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Use both sine and cosine formulas.
Question 6.
A triangle has an opposite side of 5 cm and an adjacent side of 12 cm. What is the angle θ?
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You will need to apply the inverse tangent function.

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