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General Information

Related Standards: MAFS.912.G-CO.4.12
Reporting Category: Geometry: Congruence
Type: MC: Multiple Choice
Difficulty: N/A
Question:

Ruben carries out a construction using Triangle BC. Click the play button to see a part of his construction,

What will be the result of Ruben's construction?

Answer Options:

A. Ruben constructs a segment perpendicular to begin mathsize 12px style stack A C with bar on top end style

B. Ruben constructs the bisector or begin mathsize 12px style stack A C with bar on top end style

C. Ruben constructs an angle congruent to begin mathsize 12px style angle B end style

D. Ruben constructs the bisector of begin mathsize 12px style angle B end style.

Answer Key:
D

Aligned Standards

Code 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.

Clarifications:
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.


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