A ratio shows the relative sizes of two or more values. Ratios can be shown in different ways.
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standard form
it means "Expanded Form" (such as 125 = 100+20+5),
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algebra
letters representing numbers are combined
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volume and surface area
The area of a circle is πr2 (π × radius × radius). π (pi) is approximately 3.14
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trigonometry
you will substitute values into one of the trig formulas above, and solve for the missing value. For example, if you know the side adjacent to the angle and need to know the hypotenuse, you can use the formula for cosine and solve for the length you
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Other cards in this set
Card 2
Front
standard form
Back
it means "Expanded Form" (such as 125 = 100+20+5),
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