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pi*r squared:2
*=multiply
: =divide
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How do you find the area of a half circle?
Make it a whole circle. Find the area. Divide by two.
If a circle has a radius of 12 meters what is the area half of the circle?
The area of any circle is (pi) x (radius)2 .The area of half the circle is just half of that number.
How do you find area of a circle when you have the circumference circle?
Divide the circumference by pi, and that will give you the diameter. Then take half of the diameter (the radius), and plug it into the formula for the area of a circle (A=πr²)
What is the area of a semi circle with a radius of 3 inches?
It's half of the area of the whole circle...
How do you calculate the square footage of a half circle?
Area of a circle is pi*radius^2. So if the radius is measured in feet, the area (or the square footage) of a half circle is: (pi*r^2)/2
How do you find half circle area in m2?
Area of half a circle in square m = pi*radius2 divided by 2
How do you find the area of a semicircular shape?
Assume the shape is half circle. The area of the circle is: A = πr² where r is the radius Since the semi circle has half the area of the circle, we obtain: A = πr²/2
How do you find area if a circle?
The area of a circle is Pi(3.1416)*radius2 if you do not have the radius, it is just half of the diameter.
How do you find the area of circle when its half of the circle?
Find the area of the whole circle and divide by two. Area of semicircle = 0.5*pi*r2, where pi = 3.14159 and r is the radius
How do you find the bottom half of a circle?
To find the area of half a circle, use the formula for a circle pi*r^2 divided by 2. pi = 3.14, r = radius (half the distance across the circle)
How can you find the area of a circle?
the area of a circle is pi times radius2. half a circle is pi times radius2 divided by 2.
How do you find the area of a half circle?
Make it a whole circle. Find the area. Divide by two.
Why do you find the area of a circle with pi times the radius squared?
You find the area of a circle with pi times radius squared because the radius is half the circle so to find the full area you need to multiply it again.
How do you the find of a eqution of a half circle?
Divide the original circle's area by the factor you want to divide it into.
If a circle has a radius of 12 meters what is the area half of the circle?
The area of any circle is (pi) x (radius)2 .The area of half the circle is just half of that number.
How do you find the area in a semi circle?
"Semi-circle" means half circle; so you just need to calculate the area of the corresponding full circle, and divide the result by 2.
How do you find the area and perimeter of a half circle?
Find the area and perimeter of the full circle, then throw away 1/2 of each.Perimeter (circumference) of a circle = (pi) times (diameter).For a half circle, it's (1/2 pi) times (diameter)Area of a circle = (pi) times (radius)2For a half circle, it's (1/2 pi) times (radius)2
