# PBT (Part 1) - Quick

In the applet below, note the

**RED POINT.**Notice how the**RED POINT**is**ALWAYS EQUIDISTANT (the same distance away)**from the**ENDPOINTS of the gray segment**. That is, the**RED POINT**is always remains the**SAME DISTANCE AWAY**from the**ENDPOINTS of segment***AB*.**Directions:**1) Drag the**RED POINT**around for a bit. 2) Then,**move point(s)**,*A*and/or*B*around**clear the trace**, and then drag the**RED POINT**around again. 3) Repeat steps (1) and (2) several times. Answer the questions that appear below the applet.## 1.

What vocabulary term (adjective) would **describe the angle** at which the **collection of all these red points **intersects the **gray segment**?

## 2.

What does this **collection of points** **(line, in this case) **do to the **gray segment**?

## 3.

What general conclusion can you make about **ANY POINT **that is **equidistant (that is, equally distant)** from the **ENDPOINTS of a segment**? **Where does it lie**?