No
It is 65 inches.
Answer is 65 inches. (12 inches = 1 foot)
21.52 inches
4 inches and 5inches
5 inches=12.7 centimeters
6.5 inches = 0.5417 feet
5 inches is 12.7 centimeters.
4inches*3inches*5inches = 60 cubic inches, which we can write as 60in3.
Using Pythagoras it is 13 inches
7 feet 5 inches = 89 inches circumference = 89*pi inches
240 cubic inches
Shotgun barrels in the US must be at least 18 inches long, and are generally smooth inside. Handgun barrels are usually much shorter than 18 inches, and are rifled- a set of spiral grooves (rifling) is cut into the inside of the barrel to make bullets spin when fired.