Question

given the circle below match the following items with their correct values

Answer 1

Radius:

From the figure we notice that the radius is 3 units.

Diameter:

The diameter is twice the radiues, hence the diameter is 6 units.

Circumference:

The circumference is given by:

$C=\pi D$

where D is the diamteter, therefore the circumference is:

$C=6\pi$

Area:

The area is given by:

$A=\pi r^2$

where r is the radius, plugging the values we have:

$A=\pi(3)^2=9\pi$

therefore the area is:

$A=9\pi$