Answer:
<em>The area of a circle is πr2 and the perimeter (circumference) is 2πr</em>
<em>thank</em><em> </em><em>you</em><em> </em><em />
<span>No, because postulates are assumptions. Some true, some not. So it can't be used to prove it</span>
Multiply the two values together to get 45 * 3/5 = 135/5 = 27