Answer:
Part 1) The area of the circle is [tex]A=50.24\ yd^2[/tex]
Part 2) The circumference of the circle is [tex]C=25.12\ yd[/tex]
Step-by-step explanation:
step 1
The area of a circle is equal to
[tex]A=\pi r^{2}[/tex]
we have
[tex]r=8/2=4\ yd[/tex] ---> the radius is half the diameter
[tex]\pi =3.14[/tex]
substitute
[tex]A=(3.14)(4)^{2}[/tex]
[tex]A=50.24\ yd^2[/tex]
step 2
The circumference of a circle is equal to
[tex]C=\pi D[/tex]
we have
[tex]D=8\ yd[/tex]
[tex]\pi =3.14[/tex]
substitute
[tex]C=(3.14)8[/tex]
[tex]C=25.12\ yd[/tex]
