There are no diameters for squares; let us just make that clear. Diameter only applies for circles (Line that goes through centre of circle and touches edges). However, diameters in squares would be simply length(but went through centre). Therefore it could be anywhere between 15-~21.2132. (Straight length/width or diagonal or anywhere else.)
Hope this helps :D
(I'm Australian-centre, not center)
15*15 = 225 square centimetres.
Area = pi*7.52 = 176.715 square cm rounded to 3 dp
Area of a circle = (1/2 x diameter)2 x piArea of a 24 inch diameter circle:(12 inches)2 x 3.1416 = 144 square inches x 3.1416 = 452.4 square inches
1m*2m*15cm = 0.3 metres3 = 300 Litres
225 cm squared
15*15 = 225 square centimetres.
The circumference of a circle with diameter of 15cm is about 47.12cm
The circumference of a circle, if the diameter is 15cm, is about 47.12cm
The circumference of a circle with diameter of 15cm is about 47.12cm
Area = pi*7.52 = 176.715 square cm rounded to 3 dp
If 15cm is the diameter then the radius is 7.5cm If the circumference is 15cm then the radius is 7.5/pi cm
Diameter = Radius*2 = 30 cm.
The perimeter of a full circle (circumference) is "pi" times the diameter. So the perimeter of a semi-circle will be half that; Perimeter = (pi/2) x (diameter).
15mm what? Diameter or radius? Formula for finding Circumference is Pi X Diameter. If 15mm is the Diameter, multiply 15mm by 3,1614 = 47.124mm. If 15mm is Radius, then multiply Radius by 2 to get Diameter and then multiply by 3.1416 = 15 X 2 = 30 X 3.1416 = 94.248mm.
ANUS
Diameter X 3.14159265 divided by 4 X diameter X diameter. 2 * 3.14159265 / 4 * 2 * 2 = 6.2831853 square inches
Volume of a sphere = (4 x pi x r^3)/37.5^3 = 421.8754 x pi x 421.875 = 5301.4376035301.437603/3 = 1767.1458681767.145868cm