Some one help and ur geting reported if u put a wrong/stuid answer.

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

Find the area of the regular hexagon if a side is 20 cm.