Q: Finding area of circle

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Whether you are finding the area of a circle or the area of a square or any other geometrical shape, it is always the case that to go from a linear measurement (a radius, a side, or whatever) to a surface area requires you to use a square of the linear measurement; you are increasing size in two dimensions, length and width, and therefore the effect is the increase the area exponentially, not linearly.

Well the formula for a full circle is 3.14xradius squared So cut the radius in half then square it the multiple by 3.14

πr² is the formula for finding the area of a circle. To find the area of a semicircle just divide the answer by two. So take the radius, square it, which in this case would be 100, multiply it by π [pi (3.14)] and divide it by two.

Area of a circle = Pi * radius2

the area of the circle is increased by 400%

Related questions

Some of many examples are:- Finding the circumference of a circle Finding the area of a circle Finding the surface area of a sphere Finding the volume of a sphere Finding the surface area of a cylinder Finding the volume of a cylinder Finding the volume of a cone Finding the surface area of a cone

Area of a circle = pi*radius squared

Circumference of a circle is (pi * diameter). Area of a circle is (pi * r2).

Area of circle = pi*(radius)2

Some of the many applications that pi is used in geometry are as follows:- Finding the area of a circle Finding the circumference of a circle Finding the volume of a sphere Finding the surface area of a sphere Finding the surface area and volume of a cylinder Finding the volume of a cone

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The circumference of a circle divided by its diameter is the value of pi and pi has a wide range of uses some of which are:- Finding the volume of a sphere Finding the surface area of a sphere Finding the volume of a cone Finding the volume of a cylinder Finding the area of a circle Finding the circumference of a circle

go to the related link below Titled (Calculate the Area of a Circle).

The area of a circle is measured in square units. The formula is: pi*radius2

No because the formula for finding the area of an oval, which is an ellipse, is quite different

Area of a circle = pi*radius2

Finding the area of a circle: pi*radius2 Finding the circumference of a circle: 2*pi*radius or diameter*pi Finding the surface area of a sphere: 4*pi*radius2