LESSON QUESTION
What is the best way to convince someone that your mathematical ideas are reliable (sound)?
LESSON CHALLENGE
Convince someone that there are two spots around the campfire that are the same distance (equidistant) from their adventure-sharing friend.
LESSON SUMMARY
In this lesson, you will use your understanding of circles and triangles to help you convince others that your mathematical ideas are reliable.
BIG IDEA
Comparing the lengths of chords in a circle helps us find positions around the circle that are equidistant from another point on the circle.