Download CP741 Angle in a Semi-Circle

ClassPad II Help Series
CP741
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Angle in a Semi-Circle
Select the line segment tool and use it to
add two more chords as shown.
Charlie Watson
April 2015
02.00.2000.0000
Select BD and CD, and then tap Draw,
Attached Angle.
Now observe the size of ∠BDC as point D
is moved around the circumference.
The size of angle BDC is displayed in the
triangle.
Tap on D to select. Next tap and drag D a
small distance around the circumference.
Do the same for B or C.
Start a new file in Geometry.
Create a circle with a diameter (See
video 740 for method).
Author
Date
CPII OS
Repeat for angles at B and C. Make sure
to deselect all in between attaching
angles.
If desired, tap File, Save to store a copy
of this geometry file.