Karen Mae G. Leonor
C-O-C-O-C-O-L-A
The length of half a circle is called a semicircle. It represents half of the circumference of a full circle. The formula for the circumference of a circle is (C = 2\pi r), so the length of a semicircle would be (\pi r), where (r) is the radius of the circle.
The circumference of a 10 and a half inch circle is about 33 inches (32.99). (C = d x Pi)
another name for a half circle is semi-circle
C/2 = pi x diam / 2
Coca cola
well,first the radius is half of the chord. Radius is the distance from the circle centre to the chord end. The chord is the line joining the ends of the arc. Draw this line. Call the distance from the arc of the circle at its deepest point to the mid point of the chord "c". If extended, this line will go throught the centre of the circle. Call half the length of the chord "y". Then the properties of circles and chords is that c(d-c)=y2 where d is the circle diameter, so that d = y2/c + c. And then radius is half that.
a hemisphere
Half a circle is called a semi-circle. Sometimes it is called a half-moon.
John Stith Pemberton
Use the formula c=d(pi)
a half circle? a half? semi circle? half sphere?