Congruent Triangles Poster Activity
Group Names ________________________________________________________
In this activity you will create triangles based on given conditions and display them
on a poster. You will then compare the posters from the different groups and draw
conclusions about which triangles are congruent, which triangle are not congruent and
why.
Necessary Materials:
poster board (white)
construction paper (red, orange, yellow, green, blue, purple, and pink)
sciccors
markers
measuring tools
Your Job:
As a group, create and cut out triangles for each of the following conditions.
Display them on the poster.
Each triangle should be labeled with the number (1-7) and the given measurements.
1. Create as many triangles that you can that have sides of 11 cm, 14 cm, and 18 cm.
Make these out of red paper.
2. Create as many triangles that you can with angle measures of 30, 45, and 105
degrees. Make these out of orange paper.
3. Create as many triangles that you can that have sides of 14 cm and 11 cm with a 30
degree angle between the two sides. Make these out of yellow paper.
4. Create as many triangles that you can that have a side of 11 cm. At one end is a 30
degree angle and at the other end is a 105 degree angle. Make these out of green paper.
5. Create as many triangles that you can that have angle measures of 45 and 105
degrees. Have the side opposite the 45 °angle measure 14 cm long. Make this with
blue paper.
6. Create as many triangles that you can that have a side of 18 cm and a side of 14 cm.
Have the angle opposite the 14 cm side be a 30 degree angle. Make this out of purple
paper
