The Goetic Circle consists of the Magical Circle of Solomon and the Magical Triangle of Solomon.
The circle is nine feet across. It is made to preserve oneself from the malice of the Evil Spirits.
The triangle is three feet across and is placed two feet from the circle. It is from where the Evil Spirits can be commanded.
Ref: The 72 Demon Sigils, Seals And Symbols Of The Lesser Key Of Solomon, A Pocket Reference Book
