Circle area = 18 ·

18 Apr 2024, 00:00

Circle area = 18 Image to Crop

A circle has area = 18

Calculate Area, Circumference, Radius, Diameter

Calculate radius (r):

A = πr2

Rearranging the equation, we get:

r2 =	A
	π

r =	√A
	√π

r =	√18
	√3.1415926535898

r =	4.2426406871193
	1.7724538509055

r = 2.3936536824086

Calculate circumference (C):

C = 2πr

C = 2π * 2.3936536824086

C = 4.7873π or 15.0398

Calculate diameter (d):

d = 2r

d = 2 * 2.3936536824086

d = 4.7873073648172

Final Answers

r = 2.3936536824086
C = 4.7873π or 15.0398
d = 4.7873073648172

You have 1 free calculations remaining

What is the Answer?

r = 2.3936536824086
C = 4.7873π or 15.0398
d = 4.7873073648172

How does the Circles Calculator work?

Free Circles Calculator - Calculates and solves for Radius, Diameter, Circumference, and Area of a Circle.
This calculator has 1 input.

What 3 formulas are used for the Circles Calculator?

What 7 concepts are covered in the Circles Calculator?

areaNumber of square units covering the shapecirclethe set of all points in the plane that are a fixed distance from a fixed pointcirclescircumferencethe perimeter of a circle or ellipsdiameterdistance from two endpoints of a circle through the center
d = 2roriginOn a two digit coordinate plane, the point (0, 0), where the x-axis and y-axis cross.radiusDistance from the center of a circle to the edge
C/2π

Circle area = 18

A circle has area = 18 Calculate Area, Circumference, Radius, Diameter A = r2 r = 2.3936536824086 C = 2r C = 2 * 2.3936536824086 C = 4.7873 or 15.0398 d = 2r d = 2 * 2.3936536824086 d = 4.7873073648172