[填空题]
The diagram below shows the cross s9kz2smuo . ai3ection of a cylindrical pipe s9fmp;fvs x//, 80 cm in length, carrying water. mfpfs v/;9s/xThe pipe has a radius of 15 cm.
The pipe is not at full capacity, such that the chord length of the water level [AB] is20 cm. Find the volume of water in the pipe.
