Construction of the altitudes

1) Construct the altitude of each segment of the triangle. Use the line tool pull down and choose the perpendicular line tool. Choose the point and opposite side of which you want to construct the altitude.
2) After constructing all three altitudes, place a point at the intersection.

Drag the verticies of the original triangle around to answer the questions of the corresponding question worksheet.

Brad McDaniel, Created with GeoGebra