A cross section is the intersection of a solid an a plane
Pat attention to the ending of the numbers. If there are an odd amount of odds, it's going to be odd. If there is an even amount of odds, it's going to be even. If there's only evens, it's only going to stay even.
Well Marta is still like that if you can Marta good luck
Diameter- The line that goes through the circle is the diameter to find the diameter take the radius and multiply it by two
Circumference- Take the radius divide by two and multiply by pi which is 3.14