Respuesta :

31.4. circumference formula is pi x diameter, and the formula for diameter is radius x 2. so, 5x2= 10 and 10 x 3.14= 31.4

The cookie's circumference is 31.4

What is the circumference of a circle?

To calculate the circumference of a circle, multiply the diameter of the circle with π (pi). The circumference can also be calculated by multiplying 2×radius with pi (π=3.14).

Given: Daniel wants to buy cookies for her friend.

The radius of a cookie is 5 inches.

How to find the cookie's circumference?

The Circumference formula is pi x diameter,

and the formula for the diameter is radius x 2.

So, 5x2= 10 and 10 x 3.14= 31.4.

Learn more about circles on: https://brainly.com/question/18571680

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