Grade 5 Unit 7
Lesson 8: Sort Triangles
CC BY 2021 Illustrative Mathematics
Grade 5 Unit 7
Lesson 8: Sort Triangles
CC BY 2021 Illustrative Mathematics
What is the measure of the angle?
Record an estimate that is:
Find a triangle card that fits in each space on the grid. If you don’t think it is possible to find a triangle that fits certain criteria, explain why not.
Sort the triangle cards from the previous activity in a way that makes sense to you. Describe how you sorted the cards.
Now sort out the triangles with a 90 degree angle. For these triangles, write statements about each category.
All of the triangles with a 90 degree angle...
Some of the triangles with a 90 degree angle...
None of the triangles with a 90 degree angle...
Complete the statements about the triangles below.