A 12 by 16 rectangle is inscribed in circle. What is the circumference of the circle?
Choose the correct answer:
A) 5π
B) 10π
C) 15π
D) 20π
E) 30π
The diagonal of the rectangle will be the diameter of the circle.   and perimeter= 2*pi*r   Ans: 20π
<result>D</result>
A 12 by 16 rectangle is inscribed in circle. What is the circumference of the circle?