Question

A straw is 25 cm long an 12 mm in diameter.how much liquid can be held in the straw at one time

Answer 1

Answer:

• About 28 cm³

Explanation:

The shape of a straw may be modeled by a cylinder; thus, use the formula for the volume of a cylinder with length (or height) 25cm and diameter 12mm.

Formula for the volume of a cylinder:

       $V=\pi \times (radius)^2\times height$

For the given straw:

• radius = diameter/2 = 12mm /2 = 6mm

• Convert to cm: 6mm × 1cm/10mm = 0.6cm

• height: 25cm

Substitute and compute:

         $V=\pi \times (0.6cm)^2\times 25cm\approx28.27cm^2\approx28cm^3$