0
To find the area of a circle you must know the radius or diameter. The diameter is 2x the radius so the radius is 1/2 the diameter. For example, if the diameter is 6, the radius is 3. Next you must square the radius. For our instance, 3 squared is 9. ( 3x3=9) Now you must multiply the squared radius by pi.9 x 3.14= 28.26. (3.14 because it is pi rounded) The area of the circle with a radius of 3 is 28.26. We rounded pi to get 3.14. The formula is A=Pi r2.
Add your answer:
Earn +20 pts
How do you find the area of a circle if the circle is 8cm?
Area of a circle = pi*radius2
How do you find the area of only .25 a circle?
Find the area of the circle and divide by 4.
How do you find the area of 16 wide and 27 long that has a semi circle?
how do you find the area of a semi circle
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 area of a semi-circle if you know the diameter?
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.
How do you find the area of a circle inside a square?
all you do is find the area of the circle... if you mean find the squares area, find the area of the circle, and then the square's area and subtract the squares area to the circles area
How find the area of a square when a circle is inside?
You find the area of the whole square first. Then you find the area of the circle inside of it And then subtract the area of the circle from the area of the square and then you get the shaded area of the square
How do you find the area of a shaded circle and the area of an unshaded circle on that is inside the other circle?
To find the area of the circle pi*radius*squared and subtract the area of the figure inside
How do you find the area of a circle if the circle is 8cm?
Area of a circle = pi*radius2
How do you find the area of only .25 a circle?
Find the area of the circle and divide by 4.
How do you find area of a circle with another circle in it?
First find the area of the larger circle and then subtract the area of the smaller circle. Area=(pi x radiuslarger)-( pi x radiussmaller)
Formula to find the area of circle?
Area of a circle = pi*radius2
How do you directly find the area of a circle?
area of a circle = pi*r2
How do you find the area of 16 wide and 27 long that has a semi circle?
how do you find the area of a semi circle
When you know the radius of a circle how can you find the area?
Area of a circle = pi*radius2
How do you find the area of a square with a semi-circle?
You add the area of the square with the area of the semi circle.
How do you find the diamter of a circle if you know the area?
In order to find the diameter of a circle if you have the area is to rearrange the formula for the area of a circle to put diameter as the unknown, like so: PIE*d = Area of a Circle d = (Area of a Circle) / PIE Therefore if the area of your circle is 40cm, 40/PIE = 12.73cm and that's the diameter.
