Question

the external diameter of the barrel of an air gun is found to be 1.62 cm and the thickness of the metal is 7mm. Find the internal diameter.​

Answer 1

Answer:

$\bf{.92cm}$

Step-by-step explanation:

10mm=1cm

Inner diamter = Outer diameter - thickness of metal

=1.62×10mm-7mm

=16.2mm-7mm

=9.2mm

=$\frac{9.2}{10}$cm

=$\bf{.92cm}$