math
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| ratio of a to b | a comparison of two numbers using division. the ratio of a to b, where b is not equal to 0, can be written as a to b, as a:b, or a over b
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| proportion | an equation that states that two ratios are equal
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| means | the middle term
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| extremes of a proportion | the first and last terms of a proportion
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| cross products property of a proportion | in a proportion, the product of the extremes equals the product of the means
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| geometric mean | for two positive numbers a and b, the positive number x that satisfies a/x = x/b. so x^2 = ab and x=sq.root ab
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| additional properties of proportions 2.reciprocal property-if two ratios are equal, then their reciprocals are also equal | 3. if you interchange the means of a proportion, then you form another true proportion
4.in a proportion, if you add the value of each ratios denominator to its numerator, then you form another true proportion
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| scale drawing | a drawing that is the same shape as the object it represents
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| scale | a ratio that describes how the dimension is a scale drawing are related to the actual dimensions of the object
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| similar polygons | two polygons such that their corresponding angles are congruent and the lengths of corresponding sides are proportional
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| scale factor | the ratio of the lengths of two corresponding sides of two similar polygons
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| perimeters of similar polygons theorem | if two polygons are similar, then the ratio of their perimeters is equal to the ratios of their corresponding side lengths.
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| corresponding lengths in similar polygons | if two polygons are similar, then the ratio of any two corresponding lengths in the polygons is equal to the scale factor of the similar polygons.
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To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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Created by:
moneil5
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