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Area of a semicircle = (pi*radius^2)/2
50.25cm
Area in square inches = (pi*radius^2)/2
2pi sq cm
The area of a semicircle is one-half the area of a circle. it is equal to (pi/2)r^2, where r is the radius.
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
50.25cm
That would depend on the radius which has not been given but the area of the semi circle will be (pi*radius squared)/2
Pi*radius squared is how to find the area of a semicircle
Area in square inches = (pi*radius^2)/2
2pi sq cm
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
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 area of a semicircle is one-half the area of a circle. it is equal to (pi/2)r^2, where r is the radius.