Circumference of a Circle = 2πr, where r = Radius of the circle Now, what is instead of the radius we are given the diameter of a circle, how do we calculate the circumference? Since, diameter ( d ) = 2 x radius, we substitute 2r = d in the above equation to get, Circumferenc...
pi = 3.14159 radius = 2.2 # area of circle equation <- this is a comment area = pi*(radius**2) print(area) # change values of radius <- another comment # use comments to help others understand wha...
As a practice on how to apply the formula, let us work together on finding the perimeter of the circle shown below: From the given figure, we are given the radius of the circle to be 5 units. Hence, we can say that: r=5 units Moreover, since the radius is known, we can use th...
Example 3: Determine the equation of the tangent to the circle x2 + y2 = a2, which forms a triangle of area a2 with the co-ordinate axes. Solution: Let the tangent be of the form [x / x1] + [y / y1] = 1, and the area of the triangle formed by it with the coordinate ax...
The circle area formula is one of the most well-known formulas: Circle Area = πr², whereris the radius of the circle In this calculator, we've implemented only that equation, but in ourcircle calculatoryou can calculate the area from two different formulas given: ...
Area of a circle = π× r2 And, to calculate the area of a circle using diameter use the following equation: Area of a circle = π× (d/2)2 where: π is approximately equal to 3.14. It doesn't matter whether you want to find the area of a circle using diameter or radius — yo...
Click on an equation to solve Circle Equations Where a = area r = radius c = circumference Parallelogram Equations Where a = length of side a b = length of side b h = height p = perimeter Rectangle Equations Where a = area l = length w = width p = perimeter Square Equations Where...
Change Equation Click on an equation to solve Circle Equations Where a = area r = radius c = circumference Parallelogram Equations Where a = length of side a b = length of side b h = height p = perimeter Rectangle Equations Where a = area l = length w = width p = perimeter Square...
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defined as a shape of round periphery and it is a two-dimensional shape and the periphery of the circle has a constant distance from the fixed point (center) of the circle and the constant distance between the periphery and the center of the circle is known as the rad...