Multiply the length and width, and divide that number by two.
Half of a 5x5 square: 5 times 5 = 25.
25/2= 12.5
Don't forget it's "units squared"!
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Area of half a circle in square m = pi*radius2 divided by 2
Half the square root of the square radius equals the circle radius.
Area = (pi*92)/2 127.2345025 square meters
A 12 in square has an area of 12 * 12 = 144 sq inches. Half that area is 72 sq inches.
Perimeter 316cm = 4 * s s = 79cm | Area of Square = L*L, L = s * 0.5 Area of Square = 39.5cm * 39.5cm Area of Square = 1,560.25 cm^2