Question

in the formula for the circumference of a circle, the d stands for the diameter, which is twice the radius, r. If pi= 3.14 and r = 3 m, choose the expression below that could be used to find the circumference of the circle.

Answer 1

Hey!
So to find the circumference the formal is c = pi*2r or c = pi*d
so we know the radius and so 3*2 is 6. That means 6 is the diameter
c = 3.14 * 6
The circumference is 18.84
Hope this helps!

Answer 2

The circumference of a circle would be 18.84 m.

Circumference of circle.

The circumference of a circle is defined as the linear distance around it

How to solve this problem?

The steps are as follow:

• Given

Radius (r) = 3m

pi = 3.14

• The circumference of a circle is given by following formula:

circumference of a circle = 2*pi*r

circumference of a circle = 2 x 3.14 x 3

circumference of a circle = 18.84 m

So the circumference of a circle would be 18.84 m.

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