50.25cm
Area of a semicircle = (pi*radius^2)/2
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
A circle with a radius of 21 cm has an area of ~1,385.44 square cm
Area in square inches = (pi*radius^2)/2
50.25cm
The area of a semicircle is half of the area of a circle. The area of a circle is pi x radius x radius. So the area of a semicircle is 1/2 x pi x radius x radius or (pi x radius x radius) / 2.
Area of a semicircle = (pi*radius^2)/2
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
A circle with a radius of 21 cm has an area of ~1,385.44 square cm
That would depend on the radius which has not been given but the area of the semi circle will be (pi*radius squared)/2
what is the approximate area of a circle with a radius of 26ft
Pi*radius squared is how to find the area of a semicircle
Area in square inches = (pi*radius^2)/2
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.
The equation for area of a circle is A=pi x R x R. A semicircle is half a circle, so we calculate the area of a circle and divide by 2. The area of the circle would be approximately 1384.74. Thus the area of the semicircle would be 692.37.
An area of a circle is pi*r2 - so an area of a semicircle is 0.5*pi*r2: 0.5*3.14*42 = 25.13 square meters