Printable · GCSE Foundation · ages 14-16
Exact trigonometric values worksheet — GCSE Foundation
Fifteen questions on "exact trigonometric values" — DfE statement G21. Print it, or print three versions so neighbours cannot copy by letter; the key gives the letter for each version.
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Exact trigonometric values worksheet — GCSE Foundation
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- 1.Work out the exact value of (sin 30°)² + (cos 30°)².
- 2.Write down the exact value of tan 45°.
- 3.Write down the exact value of cos 45°.
- 4.Write down the exact value of tan 60°.
- 5.A kite string makes an angle of 30° with the ground. The kite is flying at a height of 6 m directly above a point on the ground. Using the exact value of sin 30°, work out the exact length of the kite string.
- 6.A right-angled triangle has a hypotenuse of 14 cm. One of the other angles is 30°. Work out the exact length of the side opposite the 30° angle.
- 7.Three of these are rational numbers and one is irrational. Write down the one that is irrational.
- 8.Write down the exact value of sin 60°.
- 9.Work out the exact value of (cos 45°)² + (sin 45°)².
- 10.In triangle ABC, angle ABC = 90° and angle BAC = 30°. The hypotenuse AC = 12 cm. Work out the exact length of AB.
- 11.Write down the exact value of cos 60°.
- 12.Write down the exact value of tan 0°.
- 13.A ladder rests against a wall, making an angle of 60° with the ground. The ladder is 2 m long. Using the exact value of sin 60°, work out how high up the wall the ladder reaches, giving your answer in centimetres.
- 14.Each of these has an exact value. Write down the one whose value is the greatest.
- 15.Write down the exact value of sin 45°.
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