pi*32 = 100.53 inches (approx)
Diameter is not a unit of length and so the only appropriate answer is, perhaps, "As long as the piece of string!"
"One and a half inches" is approximately the same length as 38.1 millimeters (rounded), regardless whether it refers to a piece of string, a measurement of a geographic figure, or a blade of grass. A circle whose diameter is one and a half inches has an area of 1.767 square inches. (rounded)
If Mark makes a circle, that circle would have a circumference of 12 inches. The formula for circumference is pi times diameter, so the circumference divided by pi will give you the diameter of 3.82 inches. Divide this by 2 to get the radius of 1.91 inches. Area of a circle is pi times the radius squared. 1.91 squared is 3.6481. Multiply this by pi to get 11.46 square inches of area inside the circle. A circle is always the most efficient use of space possible given a fixed perimeter. If Mark makes a square with equal sides where all sides are 3 inches, the area would be 9 square inches. 3 X 3 = 9
201.1 cubic inches for every inch long the piece of pipe is.
Loop the string around the thumbtack and the pencil so that the distance from the tack to the pencil point is AB units. Fix the thumbtack to where you want the centre of the circle. Using the pencil, and with the string taut, mark its positions. These will lie on a circle with radius AB.
Diameter is not a unit of length and so the only appropriate answer is, perhaps, "As long as the piece of string!"
"One and a half inches" is approximately the same length as 38.1 millimeters (rounded), regardless whether it refers to a piece of string, a measurement of a geographic figure, or a blade of grass. A circle whose diameter is one and a half inches has an area of 1.767 square inches. (rounded)
First draw a circle using a compass. Now, use a piece of string to help measure the circumference of the circle. Now measure the diameter of the circle. To discover Pi divide the circumference by the diameter.
If Mark makes a circle, that circle would have a circumference of 12 inches. The formula for circumference is pi times diameter, so the circumference divided by pi will give you the diameter of 3.82 inches. Divide this by 2 to get the radius of 1.91 inches. Area of a circle is pi times the radius squared. 1.91 squared is 3.6481. Multiply this by pi to get 11.46 square inches of area inside the circle. A circle is always the most efficient use of space possible given a fixed perimeter. If Mark makes a square with equal sides where all sides are 3 inches, the area would be 9 square inches. 3 X 3 = 9
Well, honey, if the circumference of a circle is 4 inches, then the diameter would be about 1.27 inches. You just divide the circumference by pi (3.14) to get the diameter. Math can be a piece of cake if you just remember the formulas!
That could be a loop.
Diameter
You don't actually. You can just get out a piece of string and then lay it on the circle and then measure the length of string used to go all the way around the circle. But if you want to compute the circumference pi is the constant that multiplied by the diameter gives the correct answer. It's just one of those mysteries of nature.
Each piece of string is :1/7 x 20 = 2 6/7 or 2.857 inches (3dp)
Yes.
2 inches
a piece of string , yarn , shoe laces , anything long and thin , should be about 6 inches , tie the two ends together to create a circle.