Sl no: Number of angles
together
Degree Equal parts
1 1 1 degree 360/1=360
2 2 2 degree 360/2=180
3 3 3 degree 360/3=120
4 4 4 degree 360/4=90
5 5 5 degree 360/5=72
6 6 6 degree 360/6=60
7 8 8degree 360/8= 45
That is 360/30= 12
When we divide a circle into 4 equal parts, how much is each angle,
in degrees
The angle at this corner of the set square is 90 degree
When we divide a circle into 8 equal parts,
using other corner of set square, how much
Is each angle at the center?
Now find the angles at the corners
of the other set square.

5. circle division

  • 3.
    Sl no: Numberof angles together Degree Equal parts 1 1 1 degree 360/1=360 2 2 2 degree 360/2=180 3 3 3 degree 360/3=120 4 4 4 degree 360/4=90 5 5 5 degree 360/5=72 6 6 6 degree 360/6=60 7 8 8degree 360/8= 45
  • 4.
  • 5.
    When we dividea circle into 4 equal parts, how much is each angle, in degrees The angle at this corner of the set square is 90 degree
  • 6.
    When we dividea circle into 8 equal parts, using other corner of set square, how much Is each angle at the center?
  • 7.
    Now find theangles at the corners of the other set square.