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A circle has a diameter of 121 inches.

Which equation can be used to find the radius of this circle?

r=121/2π

r=1/2(121)

r=121π

r=2(121)

Respuesta :

rhycer12
You would use the equation -r=1/2(121) to find the radius of that circle as the radius is half the diameter 

Answer:

option 2nd is correct

[tex]r= \frac{1}{2} (121)[/tex] inches

Step-by-step explanation:

Diameter of a circle is given by:

d = 2r

where,

d is the diameter

r is the radius of the circle.

As per the statement:

A circle has a diameter of 121 inches.

⇒[tex]d = 121[/tex] inches

Using formula:

[tex]d = 2r[/tex]

then;

[tex]121 = 2r[/tex]

or

2r = 121

Divide both sides by 2 we have;

[tex]r= \frac{1}{2} (121)[/tex] inches

therefore, an equation can be used to find the radius of this circle is, [tex]r= \frac{1}{2} (121)[/tex] inches

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