Angle Formed by 2 Secants (V2): What Do You See?
- Author:
- Tim Brzezinski
Recall that a SECANT is a line that crosses a circle at 2 distinct points.
In the applet below, 2 secants are drawn to the circle from the SAME POINT OUTSIDE THE CIRCLE.
These 2 secants intercept the red arc and green arc.
Experiment with the applet below for a few minutes and then answer the questions that follow.
Be sure to move the BIG RED POINTS and BIG GREEN POINTS around to change the measures of the 2 arcs intercepted by these 2 secants.
You can also move the vertices of the two inscribed angles as well. The red inscribed angle intercepts the same red arc that the secant lines intercept. The green inscribed angle intercepts the same green arc the the secant lines intercept.