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
add 30 ft to each dimension (15 ft on each side)
then do perimeter as usual
d
To calculate the outside dimensions of the area surrounding the pool, we need to add 15 feet to the length and width of the pool.
a. Outside dimensions of the area surrounding the pool:
Length = 26 feet + 15 feet = 41 feet
Width = 21 feet + 15 feet = 36 feet
So, the outside dimensions of the area surrounding the pool are 41 feet by 36 feet.
To calculate the amount of fencing Sally will need, we need to calculate the perimeter of the area surrounding the pool.
b. Perimeter of the area surrounding the pool:
Perimeter = 2 * (Length + Width)
Perimeter = 2 * (41 feet + 36 feet)
Perimeter = 2 * 77 feet
Perimeter = 154 feet
So, Sally will need 154 feet of fencing. Therefore, the correct answer is option 'b. 41 ft by 36 ft; 154ft'.
To find the outside dimensions of the area surrounding the pool, we need to add twice the distance of the fence (15 feet) to each side of the pool.
a. The length with the fence on both sides will be 26 feet + 15 feet + 15 feet = 56 feet.
The width with the fence on both sides will be 21 feet + 15 feet + 15 feet = 51 feet.
So the outside dimensions of the area surrounding the pool are 56 ft by 51 ft.
To calculate the amount of fencing Sally will need, we need to find the perimeter of the outside dimensions.
b. The perimeter of a rectangle can be calculated by summing the lengths of all four sides. In this case, the perimeter will be:
2(56 ft) + 2(51 ft) = 112 ft + 102 ft = 214 ft.
Therefore, Sally will need 214 feet of fencing.
The correct answer is:
56 ft by 51 ft; 214 ft