Question

(a) use the calculator to find the circumference and area of the lawn. use 3.14 for π in your calculations, and do not round your answers. make sure to include the correct units. circumference:
area:
(b) the lawn will be surrounded by tape. which measure would be used in finding the amount of tape needed?
○ circumference ○ area
(c) a rope will be placed around the lawn. which measure would be used in finding the amount of rope needed?
○ circumference ○ area

Explanation:

Step1: Calculate circumference

Circumference formula: $C = 2\pi r$. Given $r=28$ ft, $\pi=3.14$.
$C = 2×3.14×28 = 175.84$ ft.

Step2: Calculate area

Area formula: $A = \pi r^2$.
$A = 3.14×28^2 = 3.14×784 = 2461.76$ ft².

Step3: Answer subquestion (b)

Tape around lawn needs circumference.
Correct option: Circumference.

Step4: Answer subquestion (c)

Rope around lawn needs circumference.
Correct option: Circumference.

Answer:

(a) Circumference: 175.84 ft; Area: 2461.76 ft²
(b) Circumference
(c) Circumference