IM G Unit 2 Lesson 1
What do you notice? What do you wonder?
Find a sequence of rigid motions that takes triangle [i]ABC[/i] to triangle [i]DEF[/i].[br]
What is the images of segment [i]BC[/i] after that transformation? Explain how you know those segments are congruent.
Justify that angle [i]ABC[/i] is congruent to angle [i]DEF[/i].
Draw a triangle.[br]Find the midpoint of the longest side of your triangle.[br]Rotate your triangle 180 degrees using the midpoint of the longest side as the center of rotation.[br]Label the [b]corresponding [/b]parts and mark what must be congruent.
Make a conjecture and justify it.[list=1][*]What type of quadrilateral have you formed? [/*][*]What is the definition of that quadrilateral type?[/*][*]Why must the quadrilateral you have fit the definition?[/*][/list]
IM G Unit 2 Lesson 19 from IM Geometry by Illustrative Mathematics, [url=https://im.kendallhunt.com/HS/students/2/2/1/index.html]https://im.kendallhunt.com/HS/students/2/2/1/index.html[/url]. Licensed under the Creative Commons Attribution 4.0 license, [url=https://creativecommons.org/licenses/by/4.0/]https://creativecommons.org/licenses/by/4.0/[/url].