IM Geometry Unit 2 Lesson 4
Draw line segment AB with a length of 5. ( Use the segment with a given length tool.)
Make angle A 40 degrees. Draw line AB'.
Make angle B 20 degrees. Draw line BA'.
Mark the intersection of lines AB' and BA' with point C.
Measure angle ACB and sides AC and BC.
Can you make a triangle that is NOT congruent using the same steps?
Can you make a triangle that is NOT congruent using the same steps?
Draw triangle ABC with these side lengths:
AB = 3
BC = 4
AC= 5
Can you make a triangle that is NOT congruent using the same steps?
What are the 3 triangle congruence shortcuts you learned today?
IM G Unit 2 Lesson 4 from IM Geometry by Illustrative Mathematics, https://im.kendallhunt.com/HS/students/2/2/4/index.html. Licensed under the Creative Commons Attribution 4.0 license, https://creativecommons.org/licenses/by/4.0/.