The Sniper's Angle
Master Inscribed Angles vs. Central Angles. Learn why sitting in the front row isn't always the best view!
Did you know? Thales of Miletus (600 BC) sacrificed an ox when he discovered that any angle inside a semi-circle is exactly 90°.
The Chord Crew
[Image of Circle Chord Properties] Explore Chords and Arcs. If two chords are equal, what happens to their arcs?
Trivia: A "Chord" comes from the Latin word for "Bowstring." The arc is the bow!
Power Plant
[Image of Tangent Secant Theorem] Calculate lengths using Tangents and Secants. The math used to calculate the distance to the horizon!
Real Life: If you stand on a beach, the horizon is only about 3 miles away because of the Tangent-Secant theorem!