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Common Trig Ratios :: Degrees

Finding the exact values of sine, cosine and tangent of special angles.

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Give the exact value for the following trig ratios. Use the / symbol to show a fraction and the root button to insert the square root sign. For example sin 45° = 1/√2

sin 30°

Correct Wrong

sin 90°

Correct Wrong

tan 45°

Correct Wrong

cos 90°

Correct Wrong

cos 60°

Correct Wrong

cos 0°

Correct Wrong

cos 30°

Correct Wrong

tan 30°

Correct Wrong

sin 45°

Correct Wrong

cos 45°

Correct Wrong

tan 60°

Correct Wrong

sin 60°

Correct Wrong

Check

Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file.

Why am I learning this?

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"A really useful set of resources - thanks. Is the collection available on CD? Are solutions available?"

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Remainder Race

Remainder Race

A brilliant game involving chance and choice requiring an ability to calculate the remainder when a two digit number is divided by a single digit number. There are one and two player versions and the rules are inspired by the Royal Game of Ur.

Answers

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Description of Levels

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Surds - Make sure you understand what surds are before starting the levels below.

Level 1 - Find exact trig values for special angles up to and including ninety degrees

Level 2 - Find the indicated lengths by solving trigonometric questions with exact solutions

Level 3 - Mixed questions on exact trig values of special angles up to and including ninety degrees

Level 4 - Find exact trig values for angles between ninety and three hundred and sixty degrees

Level 5 - Solving trigonometric equations with given domains

Radians - A similar set of exercises worked in radians.

If Then - Find one trig ratio if given another from the same triangle.

Exam Style Questions - A collection of problems in the style of GCSE or IB/A-level exam paper questions (worked solutions are available for Transum subscribers).

More Trigonometry including visual aids, investigations and self-marking exercises.

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Reminder Video

Helpful Diagrams

Common Trig Ratios
Trig Graphs

Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly. You can double-click the 'Check' button to make it float at the bottom of your screen.

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