What is the formula for this?

Which statement about the relative areas of ? abc and ? xyz is true? the area of ? abc > the area of ? xyz the area of ? abc < the area of ? xyz the area of ? abc = the area of ? xyz more information is needed to compare.

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

Find the area of the triangle shown 3 by 6