MAFS.912.G-CO.4.12
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Congruence, Similarity, Right Triangles & Trig - 46%
MAFS.912.G-
CO.1.1 Definitions
CO.1.2 Use Transformations
CO.1.5 Map Transformations
CO.2.6 Rigid Motions
CO.3.9 Line & L Theorems
CO.3.10 Triangle Theorems
CO.3.11 Parallelograms
CO.4.12 Constructions
SRT.1.1 Dilations
SRT.1.2 Def of Similarity
SRT.1.3 AA Similarity
SRT.2.5 ~ &
Criteria of 
SRT.3.8 Trig & Pyth Theorem
Circles, Geometric Measurement & Geometric Properties with Equations - 38%
MAFS.912.G-
C.1.1 Similar Circles
C.1.2 Chord-L Relationships
C.1.3 Inscribe/Circumscribe
C.2.5 Arcs, Angles, Sectors
GMD.1.1 Argue Formulas
GMD.1.3 Use Formulas
GMD.2.4 Identify Objects
GPE.1.1 Equation of a Circle
GPE.2.4 Use Coordinates
GPE.2.5 Use || and 
GPE.2.6 Segment Ratios
GPE.2.7 Coordinate Per/Area
Modeling with Geometry - 16%
MAFS.912.G-
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
Example Four
Example Five
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.
