Instructional Video
Khan Academy

Khan Academy: Geometry: Ca Geometry: Circle Area Chords Tangent

9th - 10th
Demonstrates solutions to problems #71-75 of California Geometry released state test questions. Problems address Pythagorean theorem, 45-45-90 triangles, 30-60-90 triangles, circumscribed polygons, area, chord length, tangents to circles...
Instructional Video
Khan Academy

Khan Academy: Geometry: Circle Area Chords Tangent

9th - 10th Standards
This video [10:06] contains touches the following topics: Pythagorean theorem, 45-45-90 triangles, 30-60-90 triangles, circumscribed polygons, area, chord length and tangents to circles.