The area of a semicircle can be calculated using the formula ( A = \frac{1}{2} \pi r^2 ), where ( r ) is the radius. Given a diameter of 20 m, the radius is ( r = \frac{20}{2} = 10 ) m. Plugging this into the formula, the area is ( A = \frac{1}{2} \pi (10)^2 = 50\pi ) square meters, which is approximately 157.08 square meters.
A semicircle is 1/2 of a circle. Find the area with the diameter you are given as if you had a whole circle, then divide that answer by 2 to get the area of the semicircle.
A semicircle is half a circle, so its area is half that of a circle: radius = 1/2 diameter = 22 ÷ 2 = 11 area = 1/2πr2 = 1/2π112 ~= 190 sq in
The diameter of the semicircle will be twice the radius.
The diameter of the circle is 21.4 feet, approx.
a sphere
A semicircle is 1/2 of a circle. Find the area with the diameter you are given as if you had a whole circle, then divide that answer by 2 to get the area of the semicircle.
In a semicircle, the diameter is the straight line. It is also equal to double the radius, and that property allows it to be used when calculating area and circumference.
2328.31286 cm2
25
A semicircle is half a circle, so its area is half that of a circle: radius = 1/2 diameter = 22 ÷ 2 = 11 area = 1/2πr2 = 1/2π112 ~= 190 sq in
The diameter of the semicircle will be twice the radius.
The diameter of the circle is 21.4 feet, approx.
Diameter of semicircle = 1 Area of semicircle = Pi/8 Area of triangle = 0.25 Area outside triangle = (Pi/8) - 0.25 = 0.1427 (rounded to 4th decimal).
Radius is = to half the diameter so.... when the radius of the semicircle is 5ft then the diameter is 10ft.
it is the diameter
a sphere
it is have the diameter