what is the exact circumference of a circle with a diameter of 13 inches?
what is the formula PI*diameter=Cicumference used for?
i am confused??
the pi is 3.14
C=PI*diameter.
You need to get this down.
okay but the options i have to choose from are:
a. 26Pi in.
b. 6.5Pi in.
c. 13Pi in.
d. 42.25Pi in.
e. 169Pi in.
i think it's a. right?
I asked the question the other way. I know the circumference is 13". What's the diameter?
To find the exact circumference of a circle, you can use the formula:
Circumference = π × diameter
The diameter of the circle is given as 13 inches. The value of π (pi) is approximately 3.14159.
Substituting the given values into the formula, we have:
Circumference = 3.14159 × 13
Calculating this, we find:
Circumference ≈ 40.84087
Therefore, the exact circumference of the circle with a diameter of 13 inches is approximately 40.84087 inches.