Well, darling, the perimeter of a semicircle is the sum of the semicircle's curved edge (half the circumference of a full circle) and the diameter. So, with a diameter of 8cm, the curved edge would be half of the circumference of a circle with a diameter of 8cm, which is 8π cm. Add that to the diameter, and you get a sassy perimeter of 8π + 8 cm, or approximately 33.13 cm.
Calculating the radius of a semicircle depends on what information about the semicircle is given.
a semicircle is half of a circle... so like a circle cut in half, in a straight line. just for some information you may also need in the future: area of a semicircle: multiply the radius by itself and then multiply that by pi (approx. 3.14). divide that by 2. perimeter (circumference) of a semicircle: pi times radius. hope that helps.
The circumference of a circle = 2π r = π a (where a is the base of the semicircle and is also the diameter of the circle) The perimeter of the semicircle = half the perimeter of the circle + the base length The perimeter of the semicircle = πa/2 + a = a(1 + π /2) feet
It is: 7+8+12 = 27 cm
8*pi + 16 = 41.13 cm (approx)It depends on whether 8 cm is the radius or diameter of the semicircle.
To find the perimeter of the curved section of the semi-circle: Perimeter of semicircle = Pi x radius If you also need to the find the perimeter of the straight part of the semicircle (the diameter), it is simply double the radius.
The perimeter of a semicircle with radius R is pi*R + 2*R = R*(pi + 2)
Well, darling, the perimeter of a semicircle is the sum of the semicircle's curved edge (half the circumference of a full circle) and the diameter. So, with a diameter of 8cm, the curved edge would be half of the circumference of a circle with a diameter of 8cm, which is 8π cm. Add that to the diameter, and you get a sassy perimeter of 8π + 8 cm, or approximately 33.13 cm.
The answer will depend on what measure of the semicircle is 5 inches: its radius or diameter.
Perimeter = (pi*280)+560 = 1439.645943 cm
The circumference of a semicircle is pi times the radius plus the diameter.
Calculating the radius of a semicircle depends on what information about the semicircle is given.
Perimeter = (2*pi*5*1/2)+10+16+16 = 57.70796327 or 58 feet
a semicircle is half of a circle... so like a circle cut in half, in a straight line. just for some information you may also need in the future: area of a semicircle: multiply the radius by itself and then multiply that by pi (approx. 3.14). divide that by 2. perimeter (circumference) of a semicircle: pi times radius. hope that helps.
The circumference of a circle = 2π r = π a (where a is the base of the semicircle and is also the diameter of the circle) The perimeter of the semicircle = half the perimeter of the circle + the base length The perimeter of the semicircle = πa/2 + a = a(1 + π /2) feet
The diameter of the semicircle will be twice the radius.