Level:
Project ID:
9000062905
Accepted:
1
Clonable:
0
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
\(2\, \mathrm{cm}\). The
radius of each semicircle in the spiral is a double of the radius of the previous
semicircle. Find the total length of the spiral.
\(\infty \)
\(4\pi \)
\(\frac{4}
{3}\pi \)
\(- 4\pi \)