A young college student was working hard in an upper-level math course, for fear that he would be unable to pass. On the night before the final, he studied so long that he overslept the morning of the test.

Trigometric Ratios We can use Pythagoras' Theorem see above to calculate the length of an unknown side in a right-angled triangle when we are given information about the lengths of 2 other sides.

However, if we are given information about an angle other than the 90 degrees and one side and need to calculate the length of another side then we use the trig ratios. This first tutorial takes you through naming the sides of a triangle and an introduction to the trig ratios.

This tutorial is suitable for students in Year 10 or We can use trig ratios to calulate the length of a side on a triangle if we know the length of one side and the size of one angle.

You will need a scientific calculator for this tutorial This tutorial is suitable for students in Year 11 or Calculating angles using the trigometric ratios.

OK, so probably saw this coming. If you know the length of the two sides of a right-angle triangle then you can caculate the size of the other angles inside the triangle.

We're really getting to know stuff about right-angle triangles.Fun Brain Teasers. Check out our fun brain teasers and enjoy a range of mind bending math logic that is sure to get you thinking. Put your ability with numbers and problem solving skills to the test with classic brain teasers that will leave you scratching your head in search of answers.

Beginning Differential Calculus: Problems on the limit of a function as x approaches a fixed constant ; limit of a function as x approaches plus or minus infinity ; limit of a function using the precise epsilon/delta definition of limit ; limit of a function using l'Hopital's rule .

Problems . Grade 4 and 5 maths questions and problems to test the understanding of maths concepts and procedures are presented. Answers to the questions are provided and located at the end of each page.

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