the radius of a circular car tire is 12.5 inches. Find the circumference. use 3.14 for PI.
A 39.25 in
B 46.4 in
C 62.53 in
D 78.5 in
I got D.
So did I.
D is right.
C = 2 * pi * r
What answer do you get?
Because C ( the circle) =2 times pi (3.14) Times the Radius (12.5)
Multiply that all to gather and you get D
Can someone please put all the answers? For Connexus 7th Grade SC?
how did u get that???
To calculate the circumference of a circle, you can use the formula:
Circumference = 2 * π * radius
In this case, the radius of the tire is given as 12.5 inches, and the value of π is provided as 3.14.
Substituting these values into the formula, we have:
Circumference = 2 * 3.14 * 12.5
= 78.5 inches
Therefore, the correct answer is option D: 78.5 in.