# Section 10.2 - Ms-Schmitz

```Section 10.2
March 10, 2015
Section 10.2
Subject: «subject»
Date: «date»
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
Arc and Central Angle Investigation
1.
Draw circle A using the circle button on the left. Using the point on circle command, place point C on your circle and draw in angle BAC. Measu
2.
Highlight points B and C and the circle, and under measure choose Arc Angle. What do you notice?
3.
Move point C around. What is your conjecture about the relationship between the central angle measure and the measure of its intercepted ar
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
A Major Arc - 238º
B Minor Arc - 122º
C Semi Circle - 180º
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
Length of an Arc
=
Section 10.2
March 10, 2015
Section 10.2
hundreth)?
March 10, 2015
Section 10.2
March 10, 2015
Section 10.3
Subject: «subject»
Date: «date»
Section 10.2
March 10, 2015
Congruent Chord Activity
1.
Draw circle A and using the Point on Circle command, place point C, D, and E on the
circle. Construct segments BC and DE and measure their lengths. Drag the segments
until their measurements are equal.
2.
Measure the arc angles of their intercepted arcs. What do you notice?
3.
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
Section 10.2
If a line or segment goes through the
center of a circle and bisects the chord
and/or its arc, then it is perpendicular to
the chord.
March 10, 2015
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
Congruent Chords and Distance
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
Section 10.2
March 10, 2015
```