Answered

28 ft
14 ft
ft
(a) Use the calculator to find the area and perimeter of the lawn.
Make sure to include the correct units.
Area: O
Perimeter: 0
Х
(b) The lawn will be mowed.
Which measure would be used in finding how long it will take?
O 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

Sagot :

The formula for the perimeter of a rectangle

[tex]\begin{gathered} P=2w+2l \\ P=2\cdot28+2\cdot14 \\ P=56+28 \\ P=84ft \end{gathered}[/tex]

The formula for the area of a rectangle is

[tex]\begin{gathered} A=w\cdot l \\ A=14\cdot28 \\ A=392ft^2 \end{gathered}[/tex]

When the lawn is being mowed, we are talking about the quantity that is inside the rectangle, the correct measure should be the area.

When talking about surrounding the rectangle we talk about the length needed, the correct measure should be the perimeter.

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