Question

3. The circumference of a circle is 6 pie yards.

Answer 1

Answer:

9 pi yards squared

Step-by-step explanation:

By definition, the circumference of a circle is equal to 2pi(radius) or pi(diameter).

Since the circumference is 6 pi yards, we can work backwards to find the area.

Set the equation of the circumference of a circle and the circumference given to you equal to each other in order to find your radius. With the radius we can calculate your area.

2pi(radius)=6 pi yards

Divide both sides by 2

pi(radius)=3 pi yards

Divide both sides by pi

radius=3 yards

Now that we know the radius we can find the area.

By definition, the area of a circle is pi(radius)^2 (This reads as pi times the radius squared)

Squaring the radius is just multiplying it by itself. In this case you would multiply 3 by 3 to get 9.

pi(9 yards squared)=Area

Area=9 pi yards squared

Answer 2

Answer:

113.1 yards

Step-by-step explanation:

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