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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.
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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.
