Problem: The circumference of a circle is 100 inches. The side of a square inscribed in this circle, expressed in inches, is:
Answer Choices:
A. Ο252ββ
B. Ο502ββ
C. Ο100β
D. Ο1002ββ
E. 502β
Solution:
Since 100=Οd,d=Ο100β²β²β. Let sβ be the side of the inscribed square.
s=2βdβ=Ο2β100β=Ο502ββ