Triangle Worksheets
Geometers' Sketchpad Program Check under preferences of this program. Make sure angle measures are recorded in degrees. The lesson will not be effective if the angle measures are recorded in directed degrees.
- Run the following pages for students to record observations.
B. Right Triangle
Use Triangle ABC to create a right triangle. Select one vertice at a time and drag it around until you have created a right triangle.
Use your drawing to fill out the chart and record observations.
Measurments | Fill in the Blanks | |
Angle ABC | ||
Angle CAB | ||
Angle BCA | ||
Line AB | ||
Line CB | ||
Line AC | ||
Angle ABC + Angle BCA | ||
Angles ABC+BCA+CAB |
Right Triangle Observations:
C. Isosceles Triangle
Use Triangle ABC to create an isosceles triangle. Select one vertice at a time and drag it around until you have created an isosceles triangle.
Use your drawing to fill out the chart and record observations.
Measurments | Fill in the Blanks | |
Angle ABC | ||
Angle CAB | ||
Angle BCA | ||
Line AB | ||
Line CB | ||
Line AC | ||
Angle ABC + Angle BCA | ||
Angles ABC+BCA+CAB |
Isosceles Triangle Observations:
D.Equilateral Triangle
Use your drawing to fill out the chart and record observations.
Measurments | Fill in the Blanks | |
Angle ABC | ||
Angle CAB | ||
Angle BCA | ||
Line AB | ||
Line CB | ||
Line AC | ||
Angle ABC + Angle BCA | ||
Angles ABC+BCA+CAB |
Equilateral Triangle Observations:
E. Scalene Triangle
Use your drawing to fill out the chart and record observations.
Measurments | Fill in the Blanks | |
Angle ABC | ||
Angle CAB | ||
Angle BCA | ||
Line AB | ||
Line CB | ||
Line AC | ||
Angle ABC + Angle BCA | ||
Angles ABC+BCA+CAB |
Scalene Triangle Observations:
Final Conjecture: