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If you have an n-sided regular polygon, given the perimeter (P), the formula for diameter (D) is:
D = P / (n * sin(π / n))
For a circle, replace n with the biggest real number you want to, but the bigger the number the more accurate the calculation will be;
circumference (C) = P
D = C / (n * sin(π / n)); n -> Infinity
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How do you find the perimeter from the diameter?
The perimeter or circumference of a circle = diameter times pi
What is the perimeter of a circle if the diameter is 20 ft?
The perimeter is the diameter times pi. So the perimeter is 20pi ft
How do you find the perimeter of a circle with just the diameter?
the perimeter is 3 times as long as the diameter Example: if my diameter is 7 inches long my perimeter is 3 times as much so it is 21 inches long
How do you Find The Perimeter of a Circle With an diameter?
Multiply the diameter by pi.
If a diameter of the semicircle is 14cmfind its perimeter?
Perimeter = Circumference/2+Diameter Perimeter = (pi*14)/2+14 = 35.99114858cm or 36cm correct to two significant figures.
How do you find the perimeter from the diameter?
The perimeter or circumference of a circle = diameter times pi
What is the perimeter of a circle if the diameter is 20 ft?
The perimeter is the diameter times pi. So the perimeter is 20pi ft
Work out the perimeter of the semi-cirle when diameter is 15cm?
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).
Find the perimeter of a circle if the diameter is 36 centimetres?
Perimeter = pi*diameter = 113.1 cm
What happens if you double the diameter of a circle?
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.
Are diameter and perimeter equal?
No
What is the diameter and circumference of a circle with the perimeter of 2.0096?
The circumference is the perimeter = 2.0096 The diameter is 2.0096 / Pi = 0.63968 (rounded)
How do you find the perimeter of a circle with just the diameter?
the perimeter is 3 times as long as the diameter Example: if my diameter is 7 inches long my perimeter is 3 times as much so it is 21 inches long
How do you Find The Perimeter of a Circle With an diameter?
Multiply the diameter by pi.
What is perimeter in circle?
Pi (3.1415...) times the diameter of the circle = the perimeter
If a diameter of the semicircle is 14cmfind its perimeter?
Perimeter = Circumference/2+Diameter Perimeter = (pi*14)/2+14 = 35.99114858cm or 36cm correct to two significant figures.
If diameter is 7 find perimeter of semi circle?
Pi times the diameter gives you the circumference. Then divide that answer by two. Then add in the diameter - and, voila, you have your answer as to the perimeter of a semicircle.
