'Circular' in the Bible

Hiram also made a sea of cast metal ten cubits from brim to brim, circular in shape and five cubits and 30 cubits in its inner circumference.

Its opening from [the] inside of the capital and above [was] a cubit; its pedestal [was] a round work of a cubit and a half; moreover, on its opening [were] the carvings with four-sided frames, not circular.

On top of each stand was a circular structure one half of one cubit high, with its braces and support frames integral with it, forming a single piece.

Six steps [led up] to the throne, and [there was] a circular top to the throne behind it, and armrests were {on each side of the seat}, with two lions standing beside the armrests.