2007-02-07 20:01:29 · 13 answers · asked by mei_77 2 in Science & Mathematics ➔ Mathematics
A = pi*radius^2
pi=3.1415926535 or 22/7
radius^2 is of course the square of the radius
2007-02-07 20:11:34 · answer #1 · answered by ahleks 2 · 1⤊ 0⤋
area of a circle
= 22/7 times the square of its radius length.
2007-02-07 20:31:49 · answer #2 · answered by iyiogrenci 6 · 0⤊ 0⤋
area of circle= pi x r^2.
pi=22/7 r= radius of circle
2007-02-07 20:13:11 · answer #3 · answered by Abu F 2 · 0⤊ 0⤋
Area of circle is calculated using radius " r ",
So area of circle is = 22/7 * r * r.
= 3.14 * r * r.
2007-02-07 21:29:31 · answer #4 · answered by Lucky 2 · 0⤊ 0⤋
Hey, it' so simple !
Area of a circle = (pi) x (radius of circle) x (radius of circle)
pi is a constant, whose value can be taken as 3.14
the raidus may be measured in any unit- mm,cm,m etc.
Area will be in square. units. eg. square cm, sq mtr n so on
ps: x in the equation stands for the mathematical operation Multiplication
2007-02-07 20:08:40 · answer #5 · answered by Neil Kay 1 · 0⤊ 0⤋
A = pi*radius^2
pi=3.1415926535 or 22/7
radius^2 is of course the square of the radius
2007-02-07 20:05:02 · answer #6 · answered by Anonymous · 0⤊ 0⤋
The same as the formula given in the book you are using. Why do you ask for information that is just something you can look up? This just proves you are lazy or too ignorant to know where to look up something simple.
2007-02-07 20:49:47 · answer #7 · answered by smartprimate 3 · 0⤊ 0⤋
The area of a circle is "pi" x the radius squared.
"Pi" = roughly 3,14159.... .
2007-02-07 20:14:44 · answer #8 · answered by Hi y´all ! 6 · 0⤊ 0⤋
A = pi x r^2
Where pi is approximately 3.141592658
and r is the radius of your circle.
2007-02-07 20:04:50 · answer #9 · answered by Jonny Jo 3 · 0⤊ 0⤋
A = pi x r^2
where pi = 3.141592658
and r = radius of your circle.
2007-02-07 20:12:01 · answer #10 · answered by prasuna k 1 · 0⤊ 0⤋