Multiply the diameter by the value of Pi - and you'll have your answer.
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).
circumference = pi*56 = 175.929 cm to 3 dp
The equivalent of a "perimeter" in a circle is actually called its circumference. To get the diameter, just divide the circumference by pi.
Perimeter of a semicircle is the length of the half-circle plus the diameter. The whole circle would have a length of diameter times pi, but since it's only half... Perimeter of semicircle = (1/2*pi*D) + D
Radius is the shortest distance via straight line between the center point of the circle and its perimeter. Diameter is the greatest distance via straight line from one perimeter of the circle to the opposite perimeter. Diameter = 2x Radius.
It must be a perimeter. An area measurement would a square measurement like 56cm². ■
The radius of a circle is half of the diameter, so if the diameter is 56cm the radius can only be 28cm.
Use Pythagoras' theorem to find the hypotenuse which works out as 25cm Perimeter = 25+24+7 = 56cm
The perimeter or circumference of a circle = diameter times pi
The perimeter is the diameter times pi. So the perimeter is 20pi ft
The width is not needed as the distance travelled is 20 times its circumference (= {pi} x diameter): distance = 20 x {pi} x 56cm ~= 3519cm = 35.19m
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).
circumference = pi*56 = 175.929 cm to 3 dp
50,020 times
Perimeter = pi*diameter = 113.1 cm
You get 2 circles of diameter. If you were trying to find a perimeter, Never double the diameter. If you have a radius, You have to double it to get a perimeter.
No