N the xy-plane above<span>, </span>O is the center<span> of the cirlce. In the </span>xy-plane above<span>, </span>O is the center<span> of the cirlce, and the </span>measure<span> of angle AOB is pie/a radians</span>
That any number plus 0 is equal to the number itself.
A= 1.5 × 10^10
Hope that helps
28 divided by 1.0000 is 20
