![]() ![]() the mean = (1 + 2 + 3 + 4 + 5 + 5 + 6 + 9 + 10) ÷ 9Ī graph in which the information is summarised into columns for easy comparison.The average (mean) is represented by the symbol x.įor the scores 1, 2, 3, 4, 5, 5, 6, 9, and 10:.Average and mean are often used as interchangeable terms.It is called a measure of central tendency.The average of a set of scores is the total of the scores divided by the number of scores.A 2D shape can have more than one attribute. ![]() The attributes of a 2D shape are its size or shape. ExampleĪ rectangular diagram divided into rows (horizontal) and columns (vertical). The area of this rectangle is 2 × 4 = 8 square units. The amount of surface inside a closed flat (2D) shape. The highest point or vertex in a plane shape, polyhedron or geometric solid. The measure of turn between two straight lines that meet.Ī protractor is used to measure an angle. ExamplesĪ clock with a face and two rotating hands – the minute hand (long) and the hour hand (short) – also sometimes another hand for seconds. If the two lines are parallel, the alternate angles are equal. When two lines are cut by a third line (transversal) alternate angles are between the pair of lines on the outside of the transversal. ExampleĪ step-by-step method for solving problems in mathematics.
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