GeoGebra Classroom

# Sketching and Measuring Triangles

## Drawing your own sketches in Geogebra

On the applet below, use the toolbar to do the following: 1) Click on the "Point" button, and draw 3 points. 2) Click on the "Segment" button and make TWO segments, using the points you've drawn. 3) Click on the "Ray" button and make ONE ray to complete the triangle.

## Making Measurements in Geogebra

Once you've done that, use other tools on the toolbar to measure parts of your triangle: 4) Click on the "Distance or Length" button, and measure the length of each SEGMENT 5) Click on the "Angle" button, and measure the 3 interior angles of your triangle
REPEAT YOUR PROCEDURES ON THE BLANK APPLET BELOW!

## Naming and moving objects in your applet

Renaming objects: Right click on any point in your picture, and rename each point Moving objects: Click on the "Move" button, then click on any point OR label and drag them wherever you like. Placing points on objects: Click on the "Point on Object" button. Place a point on the ray, outside the triangle on the applet above.