Name: Knowunity
Brand: Knowunity

English (US)

https://content-eu-central-1.knowunity.com/CONTENT/DhhIcTDkFEVhmEihKQjE.pdf

DhhIcTDkFEVhmEihKQjE

Study note

Josephine McCotter

United States of America

DEFAULT (US)

DEFAULT

Geometry

Parts of Circles Dictionary 

Circles

Circle Basics

Geometry Chapter 10
PARTS OF CIRCLES DICTIONARY
Term
Definition
The set of points
CIRCLE equidistant from a given
RADIUS
CHORD
Point (the center).
Circle P
Example
OF VISUAL
A segment with endpoints
at the center and on the
circle.
A segment with endpoints
on the circle.
D
A chord that passes through
DIAMETER the center.
(Diameter = 2. radius)
A line that intersects the
circle in exactly two
SECANT
places.
TANGENT
POINT OF
TANGENCY
A line that intersects the
Circle at exactly one
place.
The point at which the
tangent line intersects.
the circle.
A
K
B
Gina Wilson (All Things Algebra), 2015 CENTRAL
ANGLE
INSCRIBED
ANGLE
ARC
An angle with a vertex
at the center, and two sides.
that are radii.
An angle with a vertex
on the circle, and two sides
that are chords.
A portion of the edge of
the circle defined by two
endpoints. Symbol:~
An arc with a measure
MINOR ARC less than
180°
* use 2 letters to name it!
An arc with a measure
MAJOR ARC greater than 180°.
* use 3 letters to name it!
An arc with endpoints on
SEMICIRCLE the diameter.
* Always equals 180° !
A
A
A
в
B
A
B
(
AB
ACB
0.
J
k
JKL
L
AREA
A = πr 2
(r= radius)
Formulas
CIRCUMFERENCE
ARC LENGTH
C = 2πr (r=radius) l = x.c
360
C = πd (d = diameter) (X= degree of arc)
Gina Wilson (All Things Algebra), 2015

Parts of Circles Dictionary

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Knowunity is the # 1 ranked education app in five European countries

Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.

4.9+

20 M

#1

950 K+

Still not sure? Look at what your fellow peers are saying...

I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D

The application is very simple and well designed. So far I have found what I was looking for :D

Love this App ❤️, I use it basically all the time whenever I'm studying

Parts of Circles Dictionary

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Can't find what you're looking for? Explore other subjects.

Knowunity is the # 1 ranked education app in five European countries

Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.

4.9+

20 M

#1

950 K+

Still not sure? Look at what your fellow peers are saying...

I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D

The application is very simple and well designed. So far I have found what I was looking for :D

Love this App ❤️, I use it basically all the time whenever I'm studying