30 pi m
50.27 yards
tell what the diameter (d) and radius(r) of each circle is by using this information
The circumference of a circle if its radius is 13cm is: 81.68 cm
Diameter = Circumfrence/pi = 13/pi = 4.14 cm (approx)
30 pi m
Radius = about 13cm Diameter = about 26cm
50.27 yards
tell what the diameter (d) and radius(r) of each circle is by using this information
The circumference of a circle if its radius is 13cm is: 81.68 cm
Circumference of the circle: 2*pi*5 = 10*pi m
Diameter = Circumfrence/pi = 13/pi = 4.14 cm (approx)
26
The formula for the circumference (C) of a circle is C = 2πr where r is the radius. But, the diameter (D) of a circle is twice the radius so this formula can be written C = πD. C = π x 13 = 40.841 cm (3dp)
The cord of a circle that contains the center of that circle is a diameter of that circle.
You do a diameter circle!!
It is: 2*pi*13 = 81.681 cm