High School · Circles

CCSS.MATH.CONTENT.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.

Read this standard on the official Common Core site

Lessons that teach this standard

• Inscribed and Circumscribed Circles

  Constructing the circles through and inside a triangle, why opposite angles of an inscribed quadrilateral add to 180°, and how to draw a tangent from an outside point.