Practice Trigonometry (5) - Trigonometry

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10 questions

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

Question 1.
What is the hypotenuse of a right triangle if its other two sides are 3 cm and 4 cm?
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Remember a² + b² = c².
Question 2.
If sin(θ) = 1/2, what angle θ corresponds?
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Think of common angles in a right triangle.
3Question 3.
What is the formula for sin(θ)?
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Remember SOH from SOH-CAH-TOA.
4Question 4.
Is tan(45°) equal to 1?
- True
- False
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What does the opposite and adjacent sides equal for 45°?
Question 5.
Two buildings are 100m apart. If a person stands at the midpoint and sees the top of both buildings at angles of elevation 30° and 45°, find the heights of both buildings.
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Use tan = Opposite/Adjacent to find both heights based on the angles given.
Question 6.
On a triangular plot of land, the length of one side is 100 m, and the angle between that side and the other two sides is 60°. Calculate the lengths of the other two sides.
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Remember, a² = b² + c² - 2bc*cos(A).

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