A pentagonal pyramid is shown If this pentagonal pyramid is sliced parallel to the base and hallway up the pyramid, what
is the resulting cross section?

A a pentagon smaller than the base
B a triangle with a height the same as the pyramid
C a quadrilateral that is not a pentagon
D
an isosceles triangle

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.