Practice Values Of Trigonometric Ratios For Standard Angles (7.5)

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9 questions

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6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is sin(0°)?
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Think about the ratio of the opposite side to the hypotenuse when the angle is 0°.
Question 2.
What is cos(90°)?
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Consider what happens to the adjacent side when the angle is 90°.
3Question 3.
What is sin(30°)?
- 0
- 1/2
- √2/2
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Think about the values you memorized for standard angles.
4Question 4.
True or False: tan(90°) is defined.
- True
- False
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Consider what happens at 90° in relation to the sides of a triangle.
Question 5.
Calculate the values of sin, cos, and tan for angles 0°, 30°, 45°, 60°, and 90° using a right triangle model.
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Make sure to visualize each angle in a triangle setup.
Question 6.
Using the ratios identified, determine the height of a triangle if the hypotenuse is 10 units and the angle is 30°.
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Remember to rearrange the sine formula to solve for height.

5 more questions in this section. Enroll free to practise them all.