# Activity 12E: Choosing the Base and Height of Triangle

- Author:
- Erika Bratcher

__Use the three identical copies of the triangle below to show the__

**DIRECTIONS****different ways to choose the**

__three__**base**and

**height**of the triangle.

**Recall**: The

**of a triangle is the line segment that is**

__height__**perpendicular**to the base (or an

*imaginary extension*of the base) and connects the base (or that imaginary extension) to the vertex

**not**on the base. You may find both the

__line____, the__

**tool**__, and the__

**line segment tool****tool to be useful. Directions for all three tools are below.**

__perpendicular line__**Click two points on the line. The Line Tool will draw the entire line that connects these two points.**

__Line Tool:__**Click two points that you want to be the endpoints of your line segment. The Line Segment tool will draw the line segment between these two points.**

__Line Segment Tool:__**Click a point you want to be on your perpendicular line. Then, click a line or line segment you want to draw the line perpendicular to. The Perpendicular Line tool will draw a perpendicular line.**

__Perpendicular Line Tool:__## Reflection:

What extra step did you need to take in two of the the triangles? Why was the height more difficult to find depending on your choice for the base?