Reviewed and Approved

Reflected Triangles

Resource ID#: 44473

Primary Type: Problem-Solving Task

This document was generated on CPALMS -

This task asks students to use a straightedge and compass to construct the line across which a triangle is reflected.

General Information

Subject(s): Mathematics
Grade Level(s): 9, 10, 11, 12
Intended Audience: Educators , Students , Parents
Suggested Technology: Adobe Acrobat Reader, Microsoft Office
Freely Available: Yes
Keywords: triangles, reflection, rigid motion geometry, Florida Standards
Instructional Component Type(s): Problem-Solving Task
Resource Collection: Illustrative Mathematics

Aligned Standards

Name Description
MAFS.912.G-CO.4.12: Make formal geometric constructions with a variety of tools and methods (compass and straightedge, string, reflective devices, paper folding, dynamic geometric software, etc.). Copying a segment; copying an angle; bisecting a segment; bisecting an angle; constructing perpendicular lines, including the perpendicular bisector of a line segment; and constructing a line parallel to a given line through a point not on the line.

Geometry - Fluency Recommendations

Fluency with the use of construction tools, physical and computational, helps students draft a model of a geometric phenomenon and can lead to conjectures and proofs.