1. www.media4math.com
TI-Nspire Mini-Tutorials
Circumscribing a Circle about a Triangle
Summary of Keystrokes
Create the geometry window:
c13
Construct a circle:
b91· (Press ` until the diameter of the circle
takes up half the screen, then press · .)
Add three points to the circle:
b71 `¢¤¡ (Use to move the pointer to three
· points on the circle. Press each time.)
(Change settings:
Connect the three points to form the triangle:
b75 `¢¤¡ (Use to move the pointer to one of
·
the points. Press , move to another point and press · .)