Ages 13–15🧮 Mathematics11 verified questions on this shelf
Trigonometry basics
Use the trigonometric ratios sin, cos, and tan in right-angled triangles to find unknown sides and angles, including setting up the correct ratio for a given problem
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Question 1 of 3
If sin θ = 3/5 and θ is an acute angle, what is the value of cos θ?
Question 2 of 3
A ladder 10 m long is placed against a vertical wall so that it makes an angle of 30° with the ground. What is the distance from the base of the ladder to the wall? Express your answer in simplest radical form.
Question 3 of 3
In a right‑angled triangle, the acute angle θ satisfies sin θ = 3/5. What is the value of cos θ?
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