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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).
What else can I help you with?
How do you find the area circumfrance and the diameter of a circle?
Formula for area: A = Pi*R² (Pi = 3,1416 and R² is the radius multiplied by itself) Formula for circumference: C + Pi*D (D is diameter) Formula for Diameter: D = 2*R (radius multiplied by 2))
Formula to find the area of circle?
Area of a circle = pi*radius2
Whats the area of the circle with radius 15cm?
706.5 cm
What is the formula for the circumference of a circle from the area?
In order to convert the area of a circle to the circumference of the circle, divide by the radius and multiply by two. The formula for the circumference of a circle is pi times the diameter.
What is the formula for finding the area of a semi-circle in terms of pi?
semi means half A semi-circle is half a circle The formula for the area of a circle is A = (Π * r^2) Area of semi circle = (Π * r^2) ÷ 2
The area of a sector is the area of the circle multiplied by the fraction of the circle covered by that sector?
The area of a sector is the area of the circle multiplied by the fraction of the circle covered by that sector. This is a true statement and correct formula.
How do you find the formula of area of a circle?
pi multiplied by the radius squared
In the formula for the area of a circle what gets multiplied by Pi?
r2(square)
What is the area of a circle if the radius of a circle is 3.7cm?
The formula for finding the area of a circle is : pi(r) squared. So, that answer would be 13.69cm multiplied by pi, which is nearest to 3.14.
In the formula for the area of a circle what gets multiplied by 3.14?
The radius squared. The radius is half of the diameter
How would the area of a circumerancebe affected when the diameter of a circle is doubled or triple?
First of all, there's no such thing as the "area of a circumference". The distancearound the circle is called the "circumference", and the area of the circle is calledthe "area of the circle".-- When the diameter of the circle is doubled, the circumference is doubledand the area is multiplied by 4.-- When the diameter of the circle is tripled, the circumference is tripledand the area is multiplied by 9.-- When the diameter of the circle is multiplied by N, the circumference ismultiplied by N and the area is multiplied by N2 .
How do you find the area circumfrance and the diameter of a circle?
Formula for area: A = Pi*R² (Pi = 3,1416 and R² is the radius multiplied by itself) Formula for circumference: C + Pi*D (D is diameter) Formula for Diameter: D = 2*R (radius multiplied by 2))
What is the circumference of a circle when its area is 121 pie inches cubed?
the area can not be cubed. the area is always squared. volume is cubed. the formula for area is pie multiplied by radius squared. your formula for your circle is... A = 121pi in2 the radius in your circle is 11 inches the formula for circumference is two times pi times the radius C = 2 * (3.14159) * 11 your answer is 69.11498in
What is the formula for the area of a cone?
The formula for the area of a cone is one-third multiplied by the base multiplied by the hight.
Is the area of a sector the area of the circle multiplied by the fraction of the circle covered by that sector?
true
What is formula for the area of a circle?
the formula for the area of a circle is 3.14 x radius squared
What is the formula doe for the area of a circle?
The formula to find the area of a circle is: A = pi * r2
