assignment -6
Introduction
-The angle made in the center of circle with any two line segment made from the points at circumference of the circle is called central angle.
- And the angle made in the circumference of circle with any two line segment made from the points at circumference of the circle is called inscribed angle .
then, inscribed angle in a circle is always half of the central that subtends by same arc.
Objectives
An dynamic applet of the inscribed angle in a circle is half of the central angle that subtends by same arc.
User Guideline
-Drag/move the points C,D and E of the figure then the value of central angle and inscribed angle changes i but it take changes 2 times of inscribed angle is one times of central angle .
so, we can say that inscribed angle in a circle is half of the central angle subtends by the same arc.
materials
Question
In above Figure, move the points C,D and E then inscribed angle is always half of the central angle?
Select all that apply
- A
- B
protocol
construction steps;-
1.Draw a circle with center A and a point B in circumference of circle ( by circle toolbar )then you can hide the point B.
2.Take two points C and D in anywhere of the circumference of the circle.
3.Draw circular arc from the center A to point C and D by anticlockwise direction.(circular arc ACD)
4.Again draw circular arc from the center point A to the points C and D by anticlockwise direction.(circular arc ADC)
5.Take a point E between the points C and D in the circumference of the circle.
6. Join points A and C,A and D, C and E, D and E.
7. Take the angle CAD and CED.
8.Enhance the construction using style bar .(such as ; color,dynamic text ........etc )
At last save your ggb applet .