in 1 Kings 7:23-26, God describes a cauldron as being "round all about", however this cannot be the case, as in the extract:

"And he made a molten sea [cauldron], ten cubits from the one brim to the other: it was round all about, and his height was five cubits: and a line of thirty cubits did compass it round about"

the cauldron is described to have a diameter of 5 cubits and a circumference of 30 cubits. 30/10=3, and pi=/=3 thus the cauldron cannot have been "round all about" as God described in the verse. My question is, why would God describe the cauldron as "round all about" if it is not, and why did God not take this verse of a cauldron as an opportunity to miraculously give the value of Pi?