54 inches
Because:
sin30=x/9 sin30 is the degrees that makes the apothems angle of depression and 9 is the radius.
The circumference of a circle is calculated using the formula ( C = \pi d ), where ( d ) is the diameter. For an 18-inch diameter, the circumference is approximately ( C = \pi \times 18 \approx 56.55 ) inches. Rounded to the nearest inch, the circumference is 57 inches.
Circumference of a circle: 2*pi*radius or diameter*pi
just over 56½ inches (18 pi)
If the radius is 18 feet - then the diameter is 36 feet. The circumference measurement is irrelevant !
(pie)(diameter)=(circumference) (pie)(9)(2)=18(pie)=56.549
The perimeter of such an equilateral hexagon is 54. The circumference of the largest cricle that can be inscribed in it is 18 pi. Hope that helps! That was if you meant the diameter as the length of the longest line that fits in the shape.
The circumference of a circle with an 18-inch diameter is about 56.55 inches. (C = d x Pi)
18*pi or 18*3.141592=56.55
Circumference of a circle: 2*pi*radius or diameter*pi
just over 56½ inches (18 pi)
The formula for circumference is pi*d = circumference. Therefore just divide the circumference by pi to get diameter. Approx. answer = 5.73
Circumference of circle: 18*pi = 56.549 inches rounded up to 3 decimal places
If the radius is 18 feet - then the diameter is 36 feet. The circumference measurement is irrelevant !
(pie)(diameter)=(circumference) (pie)(9)(2)=18(pie)=56.549
Assuming 18 inch round is a measure of the circumference, the volume is approx 0.96 Imperial gallons.
18 inches in circumference
All depends what you mean by 18 inches, is that the circumference, the diameter or the radius