Answer:
Plan A
Step-by-step explanation:
To find the better plan, you must find which plan has a bigger area.
First, we're going to find Plan A using the area formula (A = L * W)
A = L * W
A = 18 * 25
A = 450
Now we must find the area of the garden.
A = 9 * 12
A = 108
Add both areas together to get the area of Plan A.
450 + 108 = 558. Plan A has an area of 558 feet.
Second, Now we're going to find Plan B's area using the circle formula and area formula.
To find the area of the deck, use the formula.
A = L * W
A = 16 * 20
A = 320
Now we will find the area of the garden.
Since the garden is a circle and we are given the radius, we will use the formula A = πr²
A = 3.14 * 5²
A = 3.14 * 25
A = 78.5
Now add both areas together.
78.5 + 320 = 398.5. Plan B has an area of 398.5 feet.
558 > 398.5, so <u>Plan A is more efficient, judging solely on size.</u>
