This book consists of 200 difficult puzzles of a variety of different types focussing on geometric shapes and mathematics. Questions include area mazes, trigonometry and a variety of puzzles testing your spatial awareness. Puzzle artworks and full-colour illustrations are included throughout. Mensa's Most Difficult Geometric Puzzles provides an exceptional challenge for even the most adept of puzzlers. The high IQ society's most ingenious puzzle setters have created a series of conundrums to stretch your spatial awareness and mathematical dexterity. With puzzles ranging from area mazes to trigonometric conundrums, this colourful puzzle book will keep you entertained for hours.