To calculate the area of a trapezoid, identify the measurements of the two parallel sides and the distance between them. Put those numbers into the formula for calculating the area of a trapezium, and solve the equation.
Know MoreIn some cases, the length of the two sides might be given as part of the problem. In other circumstances, the lengths may need to be calculated from other information. The lengths of the other two, nonparallel sides are not necessary to calculate the area.
This measurement is also called the height of the trapezoid. In some cases, this measurement is given as part of the problem. At other times, it might need to be calculated from other information given about the figure.
The formula for calculating the area of the trapezoid is quite simple: 1/2 x (a+b) x height, where "a" and "b" are the lengths of the two parallel sides. To put this into words, add the lengths of the two parallel sides together, and divide it in half. Then, multiply that answer by the height of the trapezoid. The resulting answer is the area of the trapezoid.
The sum of sine squared plus cosine squared is 1. While the sine is calculated by dividing the length of the side opposite the acute angle by the hypotenuse, the cosine is calculated by dividing the length of the side that is adjacent to the acute angle by the hypotenuse.
Full Answer >A function is a relationship in math between two variables, often x and y, and for every value of x there is exactly one value of y. The x value is referred to as the independent variable and the y as the dependent variable.
Full Answer >The domain of the mathematical function arcsin is -1 to 1. The domain defines the possible input value for a particular function. This means the input value for arcsin, the inverse trigonometric function of sine, is never greater than 1 and never less than -1.
Full Answer >Answers to the June 2010 Algebra 2 and Trigonometry Regents exams are available from the New York State Department of Education's Office of State Assessment. For further study, answer keys for a variety of previous math exams are also available.
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