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The word, trigonometry" is derived from trigon = triangle + metry = measurement. It is based on the study of angles of a triangle and their properties. Although trigonometric ratios are often introduced to students in the context of triangles, their properties for all angles.For example, trigonometric functions are well defined for angles with negative values as well as for more than 180 degrees even though no triangle can possibly have angles with such measures.
If a circle measures 83 inches in circumference the diameter is: about 26.42 inches. You can easily do this calculation for other circles by dividing the circumference by Pi (about 3.1416).
162 square feet. This is an easy calculation - just multiply the length by the width. The answer is the number of square feet.
Neither. They are measures of different things Kilos or kilograms are measures of mass. Miles are measures of linear distance.
Each of these measures of central tendency has its own advantages and disadvantages. Different measures are best in different circumstances.