The area of a circle with diameter equals 12 inches to the nearest whole number is: 113 square inches.
Circumference of a CircleThe distance around a circle. It is equal to Pi () times the diameter of the circle. Pi or is a number that is approximately 3.14159. Example:What is the circumference of a circle having a diameter of 7.9 cm, to the nearest tenth of a cm? Using an approximation of 3.14159 for , and the fact that the circumference of a circle is times the diameter of the circle, the circumference of the circle is Pi × 7.9 3.14159 × 7.9 = 24.81…cm, which equals 24.8 cm when rounded to the nearest tenth of a cm.or you could just measure it using a string and save yourself the math
The diameter, or the distance across the circle. So if my diameter was 8, I'd take eight times 3.14 and get... give me a minute... 25.12! (That was done using pencil/notecard) Or, you can find the diameter by dividing the Circumference by Pi.
4
There are an infinite number of diameters to any circle...
Not sure about the circumfrince. The circumference of a circle is the boundary of the circle and its length is pi*d where d is the diameter if the circle, and pi is the irrational number that is approximately equal to 3.14159
The area of a circle with a diameter of twelve inches rounded to the nearest whole number is 113 square inches.
Diameter of circle: 792/pi = 252 inches to the nearest whole number
Diameter
Diameter of circle: 25/pi = 8 inches rounded to the nearest whole number
Diameter of circle: 132/pi = 42 inches rounded to the nearest whole number
-- Multiply (pi) by (diameter of circle)OR-- Multiply (pi) by (2 times radius of circle)-- Then round the product to the nearest whole number.
The diameter of the circle works out as 20 units to the nearest whole number
Circumference of circle: 14*pi = 44 units rounded to nearest whole number
Circumference of a CircleThe distance around a circle. It is equal to Pi () times the diameter of the circle. Pi or is a number that is approximately 3.14159. Example:What is the circumference of a circle having a diameter of 7.9 cm, to the nearest tenth of a cm? Using an approximation of 3.14159 for , and the fact that the circumference of a circle is times the diameter of the circle, the circumference of the circle is Pi × 7.9 3.14159 × 7.9 = 24.81…cm, which equals 24.8 cm when rounded to the nearest tenth of a cm.or you could just measure it using a string and save yourself the math
154 sq in
Just use the formula for the area of a circle (pi x radius2). Don't forget to divide the diameter by 2, to get the radius.
Circumference of circle in inches: 108*pi = 399 inches to the nearest whole number