1 On Activity. Circles with and without Coordinates
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Part B
Create a cross-sectional diagram of this situation in GeoGebra, with the circumference of Earth depicted as a circle (your
diagram need not be drawn to scale):
1. Create point C for the center of Earth, point S for the position of the satellite, and points P4 and P2 for the farthest
points on Earth where the signal will reach.
2. Draw a radius from C to P, and a line segment from S to P4. Display the measure of the angle formed at their
intersection. In the space provided below, note how CP, and SP, are related.
3. Use the Internet or another resource to find the approximate radius of Earth, and note it in the space provided below.
Then label the lengths of CP1 and SP1.