Answer:
4.9ft^2
Step-by-step explanation:
7.85 ft is the circumference of the tire (circle), so [tex]\pi[/tex]d = 7.85.
7.85/[tex]\pi\\[/tex] = 2.5, the diameter is 2.5, so the radius is 1.25.
[tex]\pi[/tex]r^2 is the formula for the area, so [tex]\pi[/tex]*1.25^2 = 1.5625[tex]\pi[/tex], which is 4.906, which rounded to the tenth is 4.9.
