A circle has a diameter of 8 inches. What is its approximate circumference?

about 25.13

Step-by-step explanation:

The formula of the circumference is 2pi * r

half of the diameter is r, r is the radius

8/2 = 4

2* pi*4

2*4 = 8

8*pi = ~25.13

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere