If the circumference of the circle is 20 cm. What is the radius
What is the diameter
What is the area

Explanation:

radius. r = 3.18309886 cm

diameter. d = 6.36619772 cm

circumference. C = 20 cm

area. A = 31.8309886 

radius: r = C/2π

diameter: D = C/π

area: A = C²/4π

or

area: A = πr²

one was in america the other france

explanation:

the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.