Practice Trigonometric Ratios In A Right Triangle (2.1) - Theorems in Geometry & Trigonometry

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6 sample questions

Question 1.
What is the sine of a 30° angle?
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Think about the special triangle ratios.
Question 2.
If the hypotenuse is 10 cm, what is the length of the opposite side in a right triangle where the angle is 90°?
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The right angle is not opposite any side.
3Question 3.
What is the sine ratio of a 90° angle?
- True
- False
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Think about what happens in a right triangle when the angle is 90°.
4Question 4.
Which ratio defines cosine?
- Opposite / Hypotenuse
- Adjacent / Hypotenuse
- Opposite / Adjacent
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Recall the 'CAH' from SOH-CAH-TOA.
Question 5.
A basketball is thrown at an angle of 45° with an initial speed of 20 m/s. Calculate the height of the basketball when it reaches 20 m horizontally using trigonometric ratios.
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Use the tangent of the angle to calculate height.
Question 6.
In triangle ABC, angle A is 30°, and side BC is 10 cm. Find the length of AB using the sine function.
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Identify which side corresponds to the sine ratio for 30°.

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