Calculate the area of circle, Mathematics

Assignment Help:

Calculate the area of CIRCLE ?

A circle is a set of all points that are at a given distance from a center point. The diameter (d) of a circle is the length of a line that goes across the circle through its center point. The radius (r) is the distance from the center point to any point on the circle; it is also one-half the diameter.

If we were to wrap the diameter around the circle, it would require approximately 3.14 diameters to complete the circle. (This is true for any circle, no matter what size.) The value of approximately 3.14 is a number that we call pi (π). We use to do calculations with circles. It is a decimal that goes on forever, but we usually round it to 3.14.

To find the area of a circle, multiply the radius by itself, and multiply the resulting number by . The area will be expressed in square units.

The circumference (C) is the distance around the circle. You find the circumference by multiplying the diameter by . Remember that the diameter is 2 times the length of the radius, so we can also find the circumference by multiplying the radius by 2, and multiplying the result by.

49_circle double.png

Key Terms: Radius ( r ), Diameter (d), π = 3.14 units
Area (A) =( π xrxr) = (π xr2) =πr2
Circumference (C) = (2xπxr) = 2πr or dπ


Related Discussions:- Calculate the area of circle

Tangents, case 2:when center is not known proof

case 2:when center is not known proof

Conditional statement, if two lines in s plane never intersect then they ar...

if two lines in s plane never intersect then they are parallel

Mean value theorem function, Mean Value Theorem : Suppose f (x) is a funct...

Mean Value Theorem : Suppose f (x) is a function which satisfies both of the following. 1. f ( x )is continuous on the closed interval [a,b]. 2. f ( x ) is differentiable on

Matrix, find the value of x for which [1 0] [0 x-8]

find the value of x for which [1 0] [0 x-8]

Find the normal to any point on the surface of convex lenses, Draw a tangen...

Draw a tangent on the lens where you want to find normal .Then line perpendicular to tangent gives normal at that point.

Math, what is division

what is division

Determine how many valid fortran identifiers, A valid identifier in the pro...

A valid identifier in the programming language FORTAN contains a string of one to six alphanumeric characters (the 36 characters A, B,...., Z, 0, 1,...9) starting with a letter. De

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd