# Chord geometry

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27 questions all stuffed in to the same circle gives students a real challenge. This puzzle is great for any high school geometry lesson on circles. It contains angles with their vertex in the circle, on the circle, and outside of the circle. These angles are all made using diameters, chords, secants and tangents.

Arcs and Chords in Circles Theorem Foldable for the Geometry Interactive Notebook

I usually use the last six week of the school year in geometry to teach circles: Arc lengths, chords, secants, tangents, etc. Which I have outlined in the Geometry Planning Guide The following scho…

Circle Vocabulary Foldable for Interactive NotebooksCCSS: 7.G.B.4Included in this product: Circle Vocabulary 6-Door Foldable. The outside includes sx important vocabulary words: circle, radius, diameter, central angle, chord and arc.2 different inside foldable choices with diagram- guided notes and a version where students write entire definition.Sample Pictures. 5-8 $

Geometry art 91-10: Semicircle, Diameter, Tangent, Perpendicular, Semi-chord, Circle, Area, Arbelo, Archimedes. Level: High School, College. Education, Teaching

Ptolemy of Alexandria compiled a more extensive table of chords in his book on astronomy, giving the value of the chord for angles ranging from 1/2 degree to 180 degrees by increments of half a degree. The circle was of diameter 120, and the chord lengths are accurate to two base-60 digits after the integer part

When starting a new unit on circles, I'm cognizant of how important learning the vocabulary is. Most geometry students are only familiar with the center, radius and diameter of a circle. Following a trigonometry unit, the word tangent takes on a new meaning. The following notes sheets and study guides should help address this.

Geometry circles activities, secants, tangents, chords, area, circumference

Key to Geometry, Book Perpendiculars and Parallels, Chords and Tangents, Circles

Arcs and Chords in Circles Theorem Foldable for the Geometry Interactive Notebook