the circumference of a circle is 31.4 cm the diameter of the circle is 10 cm which expression best represents the value of pi​

Respuesta :

Answer:

π = 3.14

Explanation:

Circumference of a circle is the length of the circle if it was straightened out to form a line segment. It is the total length of the circle and it is also referred to as the perimeter of the circle. The formula for the circumference of a circle (C) is given by the formula:    

[tex]C=2\pi r[/tex]

Where r is the radius of the circle.

Given that C = 31.4 cm and the diameter (d) = 10 cm

[tex]r=\frac{d}{2}=\frac{10}{2}=5cm[/tex]

[tex]C=2\pi r\\\pi =\frac{C}{2r}[/tex]

Substituting:

[tex]\pi =\frac{C}{2r}=\frac{31.4}{2*5} =3.14\\\pi =3.14[/tex]