Skip to main content


Scientific Calculator

TI 30Xa Solar

Click on icon to access FSA online calculator

Congruence, Similarity, Right Triangles & Trig - 46%


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


Modeling with Geometry - 16%


In Your Text

Videos From

School Tube

Learn Zillion

What You Need To Know...

MAFS.912.G-C.1.3 - Construct the inscribed and circumscribed circles of a triangle, and prove properties of angles for a quadrilateral inscribed in a circle.

1. The benchmark will be assessed using Graphic Response, Hot Text Response, Movable Text Response, Multiple choice Response, Multi-select Response, Open Response, Selectable Text Response, or Simulation Response.

2. Items may require student to construct a circle inscribed inside a triangle or circumscribed about a triangle.

3. Items may require students to use or justify properties, create circles, select a value or expression, give statements to complete formal/informal proofs or order steps and/or properties.

4. Items may include problems that use the incenter and circumcenter of a triangle..


Example One

Example Two

Additional Examples


Construct Inscribed Circle
Construct Circumscribed Circle
Please select a video file.
Construction Part II
Construction Part III
Circumcenters & Incenters
Angles in Quadrilaterals

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.