Cut a sheet of paper in the form of a circle. Fold the circle so that the impression
created forms two parts one greater than the other. Here the greater part is a major
segment and the smaller is a minor segment.
- Angle in a Semi Circle is 90o
Cut a sheet of paper in the form of a circle and then fold it along any diameter to form
two semicircles. Fold the paper twice appropriately from both the ends of the diameter
to meet at the circumference of the circle. Observe that the angle so formed in the
semicircle is always a right angle. Also note that all angles formed at the point of the
circumference are 90^0.
- Cyclic Quadrilateral
Cut a sheet of paper in the form of a circle. Fold the circle to form four chords so that
one chord touches the other two at their extremities thus forming a cyclic quadrilateral.
- Square in a Circle
Cut a sheet of paper in the form of a circle. Fold the paper twice in such way that two
diameters cutting orthogonally are formed. Now fold the paper four times forming
A
B
D C
A B
C
A B
D C
