Question

As you munch a bags of chocolate chip cookies you observe that each cookie is a circular disk with a diameter of 8.50cm and thickness 0.50cm.Find the volume of cookie with appropriate significant figures.

Answer 1

Answer: 28 cubic cm

Step-by-step explanation

The value 8.50 is accurate to 3 sig figs

The value 0.50 is accurate to 2 sig figs

We use the less accurate value to determine the answer's sig fig count.

volume of cylinder = pi*(radius)^2*height

V = pi*r^2*h

V = 3.14*(8.50/2)^2*0.50

V = 28.358125

V = 28 cubic cm

We round to 2 sig figs as I mentioned earlier.