![]() 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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