Level:
Project ID:
9000062903
Source Problem:
Accepted:
1
Clonable:
1
Easy:
1
A semicircle is a half of the full circle. An infinite spiral is built from
semicircles with an increasing radius. The radius of the first semicircle is
\(3\, \mathrm{cm}\). The
radius of each semicircle in the spiral is bigger than the radius of the previous
semicircle by one third. Find the total length of the spiral.
\(\infty \)
\(9\pi \)
\(9\)
\(3\pi \)