add 30 ft to each dimension (15 ft on each side)
then do perimeter as usual
Sally wants to build a fence around her pool. The pool is 26 feet long by 21 feet wide.The fence is to be 15 feet from the edge of the pool. a.What are the outside dimensions of the area surrounding the pool? b. how many feet of fencing will sally need?
41 ft by 36 ft; 77ft
41 ft by 36 ft; 154ft
56 ft by 51 ft; 214ft
56 ft by 51 ft; 107 ft
2 answers
d