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Congruence, Similarity, Right Triangles & Trig - 46%


Circles, Geometric Measurement & Geometric Properties with Equations - 38%


Modeling with Geometry - 16%


In Your Text

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What You Need To Know...

MAFS.912.G-CO.4.12 - make formal geometric constructions including compass and straightedge, string, reflective devices, paper folding, dynamic geometric software.

Also assesses MAFS.912.G-CO.4.13 - Construct an equilateral triangle, a square, and a regular hexagon inscribed in a circle.

1. The benchmark will be assessed using Drag and Drop response, Hot Spot Response, Movable Text Response, Multi-select Response, Open Response, or Selectable Text.

2. Items may require students to sequence the steps of a construction, explain the steps of a construction or complete a viable geometric argument.

3. Items are limited to copying an angle; bisecting a segment; bisecting an angle; constructing perpendicular lines, including the perpendicular bisector of a line segment; constructing a line parallel to a given line through a point not on the line; constructing an equilateral triangle inscribed in a circle; constructing a square inscribed in a circle; and a regular hexagon inscribed in a circle.

Example One

Example Two

Example Three

CO4 12 Ex3

                                                  Click For Solution


Example Four

CO4 12 Ex4

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Example Five

Copy a Segment
Copy an Angle
Perpendicular Bisector
Perpendicular Line
Parallel Line
Equilateral Triangle
Square Inscribed in a Circle

Reference Sheet



Select sample problems taken from FLDVIPN teacher materials

Violet Esopakis - Palm Beach Co.
Stephanie Fitzwater - Seminole Co.
Angela Kerins - Orange Co.
Lisa Lasseter - St. Johns Co.
Jodi Van Wagoner - Brevard Co