Judith Spitzli

515-402-8600

Judith Spitzli

515-402-8600

**Iowa Core Mathematics Documents**

- Iowa Core Mathematics (pdf)
- Iowa Core Mathematics (doc)
- Iowa Core Mathematics with DOK (pdf)
- Iowa Core Mathematics with DOK (doc)

**Iowa Core Mathematics Support** - Resources to support Iowa Core Mathematics.

- HSG-C.A.1 Prove that all circles are similar.
- HSG-C.A.2 Identify and describe relationships among inscribed angles, radii, and chords.
*Include the relationship between central, inscribed, and circumscribed angles; inscribed angles on a diameter are right angles; the radius of a circle is perpendicular to the tangent where the radius intersects the circle.* - HSG-C.A.3 Construct the inscribed and circumscribed circles of a triangle, and prove properties of angles for a quadrilateral inscribed in a circle.
- HSG-C.A.4 (+) Construct a tangent line from a point outside a given circle to the circle.

Printed from the **Iowa Department of Education** website on April 18, 2014 at 9:28pm.