Question

Ms. Marine calculated that her hoop earring has a diameter of 3.5 centimeters. What is the area of her earring (round to the hundredths place)?

Answer 1

Area,
`A=9.62\ cm^2`

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 :

`A=\pi r^2`

r is radius of circle

`A=(22)/(7)* ((3.5)/(2))^2\\\\A=9.625\ cm^2`

or

`A=9.62\ cm^2`

So, area of her earring is
`9.62\ cm^2`.