Level:
Project ID:
1103021611
Accepted:
1
Clonable:
0
Easy:
0
What is the length of the side of a regular pentagon circumscribed to a circle with radius of \( 9\,\mathrm{cm} \)? (See the picture.) Round the result to two decimal places.
\( 13.08\,\mathrm{cm} \)
\( 55.39\,\mathrm{cm} \)
\( 6.54\,\mathrm{cm} \)
\( 10.58\,\mathrm{cm} \)