Here is the answer for the question
Perimeter is 10 units while the area is 8 units I believe but that’s just by counting the boxes
you have to read the bottom link for the answer key
1) Venn Diagram is used to organize data
2) Four circles. Three intersection circles, and one which contains other three circles
3) In the intersection area of three circles.
4) In the circle which contains other three circles, but not inside any of the intersecting circles.