[DOC] [TLE] Area of a Circle - Math Goodies [PAR] Area of a circle is presented in this interactive lesson from Math Goodies. ... We 
use the Greek letter Pi ... We know from the last lesson that the diameter of a 
circle is twice as long as the radius. ... If each square in the circle to the left has an 
area of 1 cm2, you could count the total number of ... 3.14 to calculate your 
answers. [DOC] [TLE] Circumference of a Circle - Math Goodies [PAR] Circumference of a circle is presented in this interactive lesson from Math 
Goodies. ... We use the Greek letter Pi ... If you measure the circumference and 
the diameter of the plate and then divide ... Circumference and Area Lessons. 
Geometry... [DOC] [TLE] Area and Circumference [PAR] It is named by the Greek letter p (pi). ... Note: In finding the circumference of a 
circle, you can use whichever ... many feet (ft) of material will be needed? ... 
Sometimes we will want to combine the ideas of perimeter and circumference to 
solve. [DOC] [TLE] Radius, Diameter, Circumference, and Area of Circles - dummies [PAR] A circle is a geometric figure that needs only two parts to identify it and classify ... 
After you've chosen a point to be the center of a circle and know how far that point 
is ... With the measure of the radius, you can tell a lot about the circle: its diameter 
(the ... to a value called pi (pronounced pie), designated by the Greek letter . [DOC] [TLE] How to Find the Circumference and Area of a Circle [PAR] Three Parts:Calculating the CircumferenceCalculating the AreaCalculating Area 
and ... The Greek letter pi () represents the ratio of the circumference divided by 
the ... Once you have determined the radius and/or diameter of the circle, you can 
plug these .... you will still follow the basic steps of plugging in what you know. [DOC] [TLE] Topic 3 - Circles - The Monterey Institute for Technology and ... [PAR] Find the area and perimeter of composite geometric figures. ... So if you know a 
circle's radius, you can multiply it by 2 to find the diameter; this also means that if 
... The mathematical name for the ratio is pi, and is represented by the Greek 
letter . ... To calculate the circumference given a diameter of 9 inches, use the 
formula . [DOC] [TLE] BBC - GCSE Bitesize: Circumference of a circle [PAR] The circumference is the length of the edge around a circle. ... so 3.141592... is 
therefore a special, unique number, and we represent it with the Greek letter . [DOC] [TLE] Area of a circle - Wikipedia [PAR] In geometry, the area enclosed by a circle of radius r is r2. Here the Greek letter 
 represents ..... Finding the area of this triangle will give the area of the disk. 
Area = 1 2 .... where n is the unit normal and ds is the arc length measure. For a 
circle... [DOC] [TLE] Pi - Wikipedia [PAR] The number  is a mathematical constant, the ratio of a circle's circumference to 
its diameter, commonly approximated as 3.14159. It has been represented by the 
Greek letter "" since the mid-18th century, ... Ancient civilizations needed the 
value of  to be computed accurately for practical reasons. It was calculated to... [DOC] [TLE] Where Does 'PI' Come From? [PAR] You know what 'PI' is ... it's a number with the value 3.14, and it's used to find the 
circumference and area of a circle. ... The symbol itself is a Greek letter. ... You 
can measure its diameter easily with a ruler, but to measure the circumference, 
you'll need a piece of thread to lay around the circle; stretch it out straight to 
measure... [DOC] [TLE] Pi - Math is Fun [PAR] Or you could draw a circle with a diameter of 1. Then the ... Pi (the symbol is the 
Greek letter ) is: The ratio of ... Measure around the edge (the circumference):. [DOC] [TLE] Curved Shapes - Skills You Need [PAR] Two

Question: Greek letter you need to know to figure out the area of a circle
Answer: Pi