High School · Circles

CCSS.MATH.CONTENT.HSG.C.A.2

Identify and describe relationships among inscribed angles, radii, and chords.

Read this standard on the official Common Core site

Lessons that teach this standard

• Central and Inscribed Angles: The Inscribed Angle Theorem

  Why an inscribed angle is half the central angle on the same arc, why an angle in a semicircle is a right angle, and why a tangent meets its radius at 90°.