Practice Trigonometric Ratios Of Some Specific Angles (8.3)

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9 questions

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6 sample questions

Question 1.
What is sin 30°?
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Think about the opposite side in a right triangle with respect to the hypotenuse.
Question 2.
What is cos 60°?
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Locate the adjacent side in a right triangle related to angle 60°.
3Question 3.
What is the value of sin 60°?
- √3/2
- 1/2
- 1
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Visualize a 30-60-90 triangle.
4Question 4.
Is cos 0° equal to 1?
- True
- False
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Consider what it means geometrically for the triangle.
Question 5.
If sin(A) = √3/2, find angle A in degrees.
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Explore angles in the first and second quadrant.
Question 6.
Using sine and cosine angles, prove that sin(90° - A) = cos(A).
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Employ the definitions of sine and cosine.

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