Geometry is taught to establish a solid foundation in mathematics and spatial reasoning, promoting a comprehensive understanding of shapes, spatial relationships, and mathematical concepts. This book illustrates and describes 15 triangle concepts: equilateral triangle, isosceles triangle, scalene triangle, right triangle, obtuse triangle, acute triangle, equilateral triangle, isosceles acute triangle, scalene acute triangle, isosceles obtuse triangle, scalene obtuse triangle, isosceles right triangle, scalene right triangle, legs of a right triangle, and hypotenuse. Includes: book cover 15 picture pages 15 description pages There are two book styles included: style one is approximately 3¾" x 5", and style two is approximately 5½” x 5½“. The second style requires minimal preparation. This file is in PDF format.