A glass has a height of 10 centimeters and width of 8 centimeters. What is the volume of the glass?

*Think: What is the shape of a glass? What is the formula for the volume of that shape? Were you given the RADIUS or DIAMETER? How do you find the radius?

Hint: Remember on this one, we are now looking for volume, how much it will hold INSIDE of the shape.

(1 point)
Responses

502.4 cubic centimeters
502.4 cubic centimeters

1,256 cubic centimeters

1 answer

To determine the volume of the glass, we need to identify the shape of the glass. Given the dimensions, it seems to be a cylinder.

The formula for the volume \( V \) of a cylinder is:

\[ V = \pi r^2 h \]

where:

  • \( r \) is the radius,
  • \( h \) is the height.

You are given the height \( h = 10 \) centimeters and the width (which is the diameter) \( = 8 \) centimeters. To find the radius, we divide the diameter by 2:

\[ r = \frac{d}{2} = \frac{8 \text{ cm}}{2} = 4 \text{ cm} \]

Now we can substitute the radius and height into the volume formula:

\[ V = \pi (4 \text{ cm})^2 (10 \text{ cm}) \] \[ V = \pi (16 \text{ cm}^2)(10 \text{ cm}) = 160\pi \text{ cm}^3 \]

Using \( \pi \approx 3.14 \):

\[ V \approx 160 \times 3.14 \approx 502.4 \text{ cm}^3 \]

Therefore, the volume of the glass is approximately 502.4 cubic centimeters.