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  • PA.Math.CC.2.3.HS.A.14
Football Follies - Congruent Triangles
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CC BY-NC-SA
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The football team's bench fell apart at the game. We need to design and build a prototype for a new bench using the properties of congruent triangles and/or parallel lines.

Subject:
Geometry
Material Type:
Activity/Lab
Author:
Paula Cecil
Date Added:
04/04/2019
Indirect Measurement and Similar Right Triangles Lab
Unrestricted Use
CC BY
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On a hike with her children, Mrs. Thompson noticed the reflection of the top of a pine tree in a puddle in the path. Her son, who is almost a foot taller than she is, could not see the top of the tree in the puddle until he moved. Why did her son need to move to see the top of the tree? How can they use similar right triangles and indirect measurements to find the height of the tree?

Subject:
Mathematics
Geometry
Measurement and Data
Trigonometry
Material Type:
Activity/Lab
Author:
Jennifer Dunmire
Date Added:
03/04/2020