Activity
In this activity, you will use the GeoGebra geometry tool to explore the side-angle-side criterion for triangle congruence. Open
GeoGebra , and then complete each step below. If you need help, watch these short videos about using GeoGebra to
measure and create points, lines, and angles.
Part A
Create a triangle using the vertices A(3, 2), B(-2,5), and C(-1,7). Measure the sides AB and BC on the triangle and the
angle between the two sides, ZABC, using the Measurement Tools. Record the measurements to the nearest hundredth
in the table.
BIUX² X₂ 14pt
Side Length
AB
BC
Angle Measure
ZABC
AVA
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2
3
in
Nov 28
