Radius - SASD Teacher Websites
[Pages:5]March 17, 2014
10-1 Circles and Circumference
Circle: * The set of all points in a plane at a given distance from a given point (the center).
* Usually named by the center point, using a single letter.
* Symbol:
Radius: * A segment that goes from the center to any point on the circle.
* Half the diameter.
Chord: * A segment that has its endpoints on the circle.
Diameter: * A segment that goes through the center point and connects two points on the circle.
* A chord of the circle.
* Always two times the radius. (2r)
E M
C N
F
A
Circle:
Radii:
Diameter: B Chord(s):
March 17, 2014
Circumference: * The distance around the circle.
* Usually represented by C.
* C = 2r or C = d
* If exact Circumference is asked for, needs to be in your answer.
pi: * The ratio
C
d
* It is an irrational number.
* Can use 22 as an approximation. 7
March 17, 2014
10-1 Examples
For examples 1 - 5, refer to the circle.
1. Name the circle.
S
2. Name a radius.
R
3. Name a chord.
L
4. Name a
diameter.
W
T
5. Name a radius not drawn as part of the diameter.
The radius, diameter, or circumference of a circle is given. Find the missing measures to the nearest hundredth.
March 17, 2014
6. r = 7.55 mm d = ________ C ________
7. C = 227.6 yd d ________ r ________
8. Find the exact circumference of the circle.
24 cm
R
7 cm
The diameters of L and M are 20 and 13 units, respectively. Find each measure if QR = 4.
March 17, 2014
9. LQ
P
LQ
R
M
S
10. RM
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- 10 2 circles and circumference practice and problem solving
- 8 1 circumference find the radius or diameter of the circle with the
- quarter 3 module 20 finding the circumference of a circle deped tambayan
- 6 find the length of a chord that is 15 cm from the center of a muhs
- mathacle pset arc circumference and area of circles 1 find the
- area of circle sector and segment
- unit 13 circle workbook
- circle circumference math worksheets 4 kids
- circle circumference
- for exercises 1 4 refer to mr vieth 2018 19
Related searches
- free teacher websites for classroom
- best teacher websites for worksheets
- best teacher websites elementary
- circumference to radius converter
- circumference to radius calculator
- center and radius of the circle calculator
- find center and radius of equation calculator
- center radius form of a circle calculator
- center and radius calculator
- center points to radius calculator
- radius of a circle calculator equation
- center and radius of circle calculator