contestada

If the area of a circle is
7.7 cm2, what is the
circumference of the
circle? (I need a step-by-step answer for further understanding please!!)

Respuesta :

muhammad655

Answer:

Since area =7.7

[tex]area = \frac{22}{7} {(r)}^{2} \\ {(r)}^{2} = 2.45 \\ r = 1.57[/tex]

Then the circumference is

[tex]c = 2pi\times r \\ = 2 \times 3.14 \times 1.57 \\ = 9.859[/tex]

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