St. James-02-28-2025-Circle Investigation

● I can define the parts of a circle
● I can discover the properties of tangent lines
● I can define and measure in a circle
● I can find the measure of segments of a circle
● I can find the measure of angles inside and outside of a circle
● I can find missing measures of angles and arcs using circle theorems.

● I can explain radian angle measures in terms of a

circular radius and arc length

Objectives

​Minor Arc
2 letters
0 to 180 degrees

​Major Arc
3 letters
Above 180 to 360 degrees

​Exactly 180

​Angle outside the circle

Big arc - small arc = 2(angle)​

​

​Cyclic Quadrilateral

A Cyclic quadrilateral is a quadrilateral that is drawn inside a circle. All 4 corners of a cyclic quadrilateral must touch the circumference of the circle.

Join Desmos Class:
Go to student.desmos.com
Type in this code: 9JTVNB

THEN
Click on this link to complete the first investigation:
https://student.desmos.com/activitybuilder/student-greeting/67c13fdab7eb53887e3ddbb1

Click on this link to complete the second investigation:
https://student.desmos.com/activitybuilder/student-greeting/67c139df8b5056d7a5da68ee

​Time to Investigate