Question

A circle has a radius of 1 cm. What is the side length (in cm) of the square inscribed in this circle (see diagram)?

circle.gif
Select one:
a.
b.
c.
d.

Answer 1

a.1
b. \[\sqrt{2}\]
c. 2
d.

Answer 2

d. \[2\sqrt{2}\]

Answer 3

@perl

Answer 4

is it a ?...