Warm up. This will be graded in 10 minutes. 21 30° 6. 100°. 150° 3 3. 40°. Today’s agenda. Turn-in Chap 6 notes Make a notebook 9.1 notes and discussion Assignment: Pg 570 11-43. Notice the notation for a circle. It’s named by the center point.
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Turn-in Chap 6 notes
Make a notebook
9.1 notes and discussion
Assignment: Pg 570 11-43
Notice the notation for a circle. It’s named by the center point.
The center point is also known as the vertex of the circle.9.1 Chords and Arcs
Some important parts of a circle:
A chord is a segment that touches either side of a circle
The diameter of a circle is a chord that goes through the center of the circle.
The radius of a circle is a segment that touches the center of the circle and the side.
L = M (2πr)
Find the length of arc AB if segment AX = 10 units.
L = 85 (2 π 10) = 14.83 in.
Determine the length of an arc with the given central angle measure, mP, in a circle with radius r. Round to the nearest hundredth.
Determine the degree measure of an arc with the given length, L, in a circle with radius r.