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Area of a circle = pi x radius squared, so to get the radius,
divide the Area by pi (3.14159), and then find the square root of that
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How do you get area of sector without given radius?
if given the central angle and the area of the circle, then by proportion: Given angle / sector area = 360 / Entire area, then solve for the sector area
How do you find the area of a circle to the nearest hundredth?
If you have the radius, then area = pi*r2 which you then round to the nearest hundredth. If you do not know the radius but do know the diameter or circumference, you can calculate the radius. Otherwise you need to measure it.
How do you find area when given perimeter and width?
If you are given the width and the perimeter, then figure out what the length is then calculate the area... hope this helps :)
What is the area a circle with a radius of 15.5?
152.98 (rounded to 2 d.p) I haven't included units as I haven't been given any but they would be the same units as the units given for the radius.
What may be calculated from its diameter?
If by "it" you mean a circle, once you know the diameter, you can calculate its radius, its circumference, and its area.
How do you find the area of a circle when the radius is unknown?
By using the other information supplied about the circle to calculate either its radius (from which its area can be calculated) or its area (if the circle is similar to another with a given area and some ratio between the two circle is given):If the diameter is given: radius = diameter ÷ 2If the circumference is given: radius = circumference ÷ 2πIf the circle is similar to another circle which has a given area, and the length ratio is given; square the length ratio to get the area ratio and apply to the given area.
A pseudocode for finding the area of any circle?
Get radius (as parameter) Calculate area = pi x radius squared Return area The above assumes you write a function or method that calculates the area and returns it. Otherwise: Ask for radius Calculate area = pix radius squared Show area
How do you calculate the radius given the diameter?
Radius of a circle = diameter/2
If the circumference of a circle is increased by 50 then the area will be increased by?
there is no constant that will calculate this, since circumference is calculated with only radius and area with radius squared. you will have to calculate the radius using the initial circumference and then the radius again for the new circumference (with the 50 added). then calculate an area for each radius..then you can see the increase.
What are 5 formulas that use pi in geometry?
Circumference of a circle given radius Area of a circle given radius Volume of a sphere given radius Surface area of a sphere given radius Converting degrees to radians or vice versa
Calculate to 1DP the radius of a sphere when the surface area is 150?
The radius is 3.45
Formula for finding radius of a circle?
c=TT R Given the area, the radius = square root (area / Pi). Given the circumference, the radius = circumf/ 2Pi.
How do you calculate the radius of s semicircle?
Calculating the radius of a semicircle depends on what information about the semicircle is given.
What is the area of a circle if you are only given the radius?
you take the radius, square it, then multiply it by 3.14 and there is the area
How do you calculate for the area of a circle?
pi radius squared
How do you find the area of a circle with a given radius diameter and circumference?
Given the radius, r, the area is pi*r^2.If given the diameter d, the radius is d/r so the area is 0.25*pi*d^2If given the circumference, c, the radius is c/(2*pi), so area = 0.25*(c^2)/pi
What is the radius of a circle that has an area of 6644.24?
As area = pi * radius2, the radius is given by radius = sqrt(area /pi) radius = sqrt(6644.24 / pi) = 46 with pi = 3.14
