Johanna is selling cheese at the farmers’ market. One wheel of cheese has a diameter of 9 inches.

What is the are of the wheel of cheese? Use 3.14 for pi.
_____
|_____| square inches

Respuesta :

Answer:

[tex]a=63.585[/tex] [tex]in^{2}[/tex]

Step-by-step explanation:

Radius = 9/2 = 4.5

[tex]a=\pi r^{2}[/tex]

[tex]a=3.14(4.5)^{2}[/tex]

[tex]a=3.14(20.25)[/tex]

[tex]a=63.585[/tex] [tex]in^{2}[/tex]

Answer:

63.585 square inches.

Step-by-step explanation:

We have been given that Johanna is selling cheese at the farmers’ market. One wheel of cheese has a diameter of 9 inches.

We know that wheel of cheese is in form of circle, so we will use area of circle formula to solve our given problem.

[tex]\text{Area of circle}=\pi r^2[/tex], where, r represents radius of circle.

We know that diameter is 2 times radius:

[tex]d=2\times r[/tex]

[tex]9=2\times r[/tex]

[tex]\frac{9}{2}=\frac{2\times r}{2}[/tex]

[tex]4.5=r[/tex]

[tex]\text{Area of of the wheel of cheese}=3.14*(\text{4.5 in})^2[/tex]

[tex]\text{Area of of the wheel of cheese}=3.14*20.25\text{ in}^2[/tex]

[tex]\text{Area of of the wheel of cheese}=63.585\text{ in}^2[/tex]

Therefore, the area of the wheel of cheese is 63.585 square inches.