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in any right-angled triangle the sum of the squares on the two right-angle sides is equal to the square on the hypotenuse.
the longest side of a right-angled triangle. It is the side opposite the right angle of a right-...
two numbers (x; y) that indicate the position of a point in the Cartesian...
the notation (standardised set of rules and symbols) that allows us to describe functions.
an angle for which you can determine the trigonometrical ratio without the use of a calculator...