Hello!
The formula for area of a circle is [tex] \pi r^{2}[/tex]
[tex] \pi [/tex] is 3.14 (which is 22/7), and r stand for the radius, which is half of the diameter. If the diameter is 28 cm, the radius is 14 cm.
[tex] \pi 14^{2} [/tex]
[tex] \pi (196)[/tex]
616
Answer:
Approximately 616 cm[tex]^{2} [/tex].
Hope this helps!
