Question 220695
Let's find the two areas:


Area of the Circle: 


Take note that the radius is {{{r=d/2=4/2=2}}} units (ie divide the diameter in half to get the radius)


*[invoke area_circle 2]



Area of the Rectangle:


*[invoke area_rectangle 5, 3]



From above, we see that the area of the circle is about 12.566 square units while the area of the rectangle is 15 square units. So the circle has the smaller area.