semi circle
The circle above is named circle o. Diameter is a line that passes through the center of the circle. Cl (read as
segment CT) is a diameter if circle 0. Radius is a line segment joining the center and any point of the circle. OR. OC.
Ol are the radii of circle O. Radii is the plural of radius. A chord is a line segment with both endpoints in the circle and
the longest chord in the circle. LE is a chord. An arc is any part of a circle and read as arc LE) is an arc of circle
0. A semi-circle is an arc that is one half of a circle is a semi-circle.
Activity 1:
Refer to the given circle and do as indicated.
1. Name the diameter
2. Name the chords
3. Give all the radi
4. Name the circle
-
5. Name I semi-circle
R
Activity 2:
Identify the following parts of the circle.
B
1. BD
2. BC
3. BD
4. A
5. AC
D
4​