Question

A 3 by 4 rectangle is inscribed in circle. What is the circumference of the circle?
a. 2.5π
b. 3π
c. 5π
d. 4π
e. 10π

Answer 1

the diameter is the diagonal of the rectangle. Using the pythagorean theorem, you get the diameter being 5. The circumfrance is the diameter*(pi). So the answer is 5(pi). C