Question

finding circumference and area
use the diagram to complete each statement. use 3.14 for π, when necessary.
the radius of the circle is cm.
the circumference of the circle is about cm.
the area of the circle is about cm².

Explanation:

Step1: Identify the radius

The radius \( r \) is given as \( 8 \) cm.

Step2: Calculate the circumference

The formula for the circumference of a circle is \( C = 2\pi r \).
Substitute \( r = 8 \) cm and \( \pi=3.14 \):
\( C = 2\times3.14\times8=50.24 \) cm.

Step3: Calculate the area

The formula for the area of a circle is \( A=\pi r^{2} \).
Substitute \( r = 8 \) cm and \( \pi = 3.14 \):
\( A=3.14\times8^{2}=3.14\times64 = 200.96 \) \( cm^{2} \).

Answer:

The radius of the circle is \( 8 \) cm.
The circumference of the circle is about \( 50.24 \) cm.
The area of the circle is about \( 200.96 \) \( cm^{2} \).