Answer:
Area, [tex]A=9.62\ cm^2[/tex]
Step-by-step explanation:
We have,
Diameter of earring, d = 3.5 cm
It is required to find the area of her earring. The earring is in the shape of a circle. The area of a circle is given by :
[tex]A=\pi r^2[/tex]
r is radius of circle
[tex]A=\dfrac{22}{7}\times (\dfrac{3.5}{2})^2\\\\A=9.625\ cm^2[/tex]
or
[tex]A=9.62\ cm^2[/tex]
So, area of her earring is [tex]9.62\ cm^2[/tex].
