Question

27 ft
18 ft
(a) use the calculator to find the area and perimeter of the lawn. make sure to include the correct units.
area:
perimeter:
(b) the lawn will be mowed. which measure would be used in finding how long it will take?
perimeter area
(c) the lawn will be surrounded by a rope. which measure would be used in finding how much rope to buy?
perimeter area

Explanation:

Step1: Calculate the area of the rectangle

The formula for the area of a rectangle is $A = l\times w$, where $l = 27$ ft and $w=18$ ft. So $A=27\times18 = 486$ square - feet.

Step2: Calculate the perimeter of the rectangle

The formula for the perimeter of a rectangle is $P=2(l + w)$. Substitute $l = 27$ ft and $w = 18$ ft, we get $P=2(27 + 18)=2\times45 = 90$ feet.

Step3: Determine the measure for mowing time

The time to mow the lawn depends on the area to be mowed. So the measure is area.

Step4: Determine the measure for rope - length

The length of rope needed to surround the lawn is equal to the perimeter of the lawn. So the measure is perimeter.

Answer:

(a) Area: $486$ square feet
Perimeter: $90$ feet
(b) Area
(c) Perimeter