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3 cards from this section. Quick, good the night before a test.
What is the height BD if the pole is 5 m tall and the required point is 1.3 m below the top?
Subtract the height from the total height of the pole.
What angle is used in this example?
It was explicitly given in the problem statement.
What is the vertical reach (BD) if the pole is 5 m tall and the repair point is 1.3 m below?
Think about the height above and below the point required.
When the ladder is inclined at 60 degrees, how can BC (the length of the ladder) be determined?
Recall the relationship between opposite sides and the hypotenuse.
An electrician needs to reach a point 2 m below the top of a 7 m pole. What length of the ladder is required if positioned at a 50° angle?
Remember to use the sine function with the new angle.
If the angle is adjusted to 30°, what would be the new distance from the pole if the vertical height required remains the same?
Cotangent helps give us the adjacent side from the known vertical height.
5 more questions in this section. Enroll free to practise them all.
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