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In a circle a 90 degrees sector has an area of 225 pie in squared What is the radius of the circle?
area = 225 pi = pi R squared/4 R = square root 900 = 30 in
What is the radius of the area 345cm2?
Since area equals Pi times radius squared take and substitute what is known. 345 equals Pi times the radius squared. divide Pi into both sides for 109.8 equals the radius squared. Now take the square root of 109.8 to get an r of 10.47936 cm.
How do you find the radius of a circle if the area is 108?
The radius will be about 5.87 (units). The formula for the area is A = (pi) r2 where pi is about 3.1416 and r is the radius (squared) 108 = 3.1416 (r2) 34.38 = r2 r = about 5.87
What is the radius of a circle with circumference of 8 inches?
C = 2*pi*r 8 = 2*pi*r 4 = pi*r r = 4/pi
What is the formula for the area of the circle?
r2*pi=A π ● r² or pi times the radius squared If you are given the diameter just divide that by 2 giving you the radius. After that square the radius (multiply by it by itself). Then multiply that answer by 3.14 or pi. Area of a circle = pi*radius2
Do you multiply the radius or the diameter of pi?
The raduis.It's pi, r squared. the r stands for radius!
How do you find out the area of a circle?
pi times the radius squared pi r squared
What is the formula to find a area of a circle?
A = pi r^(2) Where A is the Area of the circle pi = 3.141592.... r = radius r^(2) = radius squared. That is 'r X r'.
How you get the area of a circle?
A= Area of the circle¶= Pi (About 3.14)r= Radius squared (Radius times radius)3.14 * Radius squared
In a circle a 90 degrees sector has an area of 225 pie in squared What is the radius of the circle?
area = 225 pi = pi R squared/4 R = square root 900 = 30 in
What is pi r r?
Pi times r times r or Pi r squared is the formula for finding the area of a circle where r is the radius
In the formula for the area of a circle what's gets multiplied?
Algebraically, it is ; - A = pi r^(2) In words, it is ' Area equals 'pi' multiplied to the radius squared'. NB 'pi' is a constant at 3.141592..... usually shortened to '3.14'. The radius (r) is the distance from the circle centre to the circumference/edge. 'radius squared' is r^(2) , that is 'r' multiplied to 'r' ; r X r = r^(2) . NNB The circumference of a circle is ; C = 2 pi r Note the power/exponent of '2' becomes a coefficient. In words ' Circumference equals two multiplied to 'pi' multiplied to the radius. (NOT radius squared).
If the area of a circle is 25 square units what is the radius of the circle?
area equals pi r squared therefor r squared equals area over pi. Now find square root of r squared and you have "R" (radius) = 2.821
How do you work out pi r squared?
That is the formula for the area of a circle; r refers to the radius, and pi is approximately 3.14. r squared means that you multiply r x r.
What is pie r squared?
"Pi R Squared" refers to the formula for the area of a circle. A = (pi)r2 (3.1416 times the square of the radius)
A circle has radius r what is the formula for the area of the circle?
For a circle or radius r, the area is given by: area = {pi}r2 (ie pi times the radius squared)
What is the relationship between the area of a circle and its radius squared?
The area of a circle is defined by the equation A = πr^2 where π = pi (3.14...) A = Area r^2 = radius squared So, the radius of a circle squared multiplied by pi equals the area.
