144pi
becous the radius is 24pi/(pi*2) and thet is 12
now 12²*pi is 144pi
42 pounds
divide the mass by 16
The answr is A sorry if wrong
The line CD is the median of thre trapezoid, therefore its measures is shown below:
You must sum the largest base and the shortest base and divide both of them by 2, as following:
CD=(4.5+2.5)/2
CD=7/2
CD=3.5
Therefore, as you can see, the measure of the line CD is 3.5
The answer is: 3.5
A = C. Msg if u need more help :3