The circle has a diameter of 10 and a radius of 5
the radius times itself ( 5 x 5 ) = 25
25 times pi (3.14) = 78.5
so the circle is 78.5, lets say square cm.
and the circumference is 31.41593 or 31.42
we need to find the center point and the length of the radius. The center point is at 5. 1. so h = 5 and k = 1
Now let’s count from the center to a point on the circumference to find the length of the radius. 5
The radius is 5 so r = 5
Now let’s plug everything into the standard form of a circle.
(x - h)²+ (y - k)² = r²