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Questions and Answers
What is the value of cosine of an angle in a right triangle if the adjacent side is 3 units and the hypotenuse is 5 units?
What is the value of cosine of an angle in a right triangle if the adjacent side is 3 units and the hypotenuse is 5 units?
- 3/4
- 4/3
- 4/5
- 3/5 (correct)
In a special right triangle with angles 30°-60°-90°, what is the value of sine of 60°?
In a special right triangle with angles 30°-60°-90°, what is the value of sine of 60°?
- 1/2
- √3/2 (correct)
- 3/4
- √2/2
An observer is 100 meters away from the base of a building. The angle of elevation to the top of the building is 60°. What is the height of the building?
An observer is 100 meters away from the base of a building. The angle of elevation to the top of the building is 60°. What is the height of the building?
- 200 meters
- 173.21 meters
- 100√3 meters
- 50√3 meters (correct)
What is the value of cotangent in a right triangle if the opposite side is 4 units and the adjacent side is 3 units?
What is the value of cotangent in a right triangle if the opposite side is 4 units and the adjacent side is 3 units?
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A guy wire is attached to the top of a 20-meter pole and anchored to the ground 15 meters away. What is the angle of elevation from the anchor point to the top of the pole?
A guy wire is attached to the top of a 20-meter pole and anchored to the ground 15 meters away. What is the angle of elevation from the anchor point to the top of the pole?
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