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Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

How many square centimeters of wrapping paper will be used to wrap the shoe box?

Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.