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What you nedd to know :
If it is related to the understanding of each element of the circle with the
relationship of several pairs of elements, it is known that some relationships
are as follows:
Element 1 Element 2 Relation
The length of the
diameter is 2 times the
length of the radius
The sum of the lengths
of the large arc and the
minor arc is equal to the
circumference of the
circle
An arc is part of the
circumference of a
circle. Or the
circumference of a
circle is the greatest arc
Diameter is the longest
chord
The apothem is always
perpendicular to a chord
The area of the segment
is equal to the area of
the slit minus the
triangle whose sides are
two radii that define the
slit and the chord that
separates the groups.
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