CK-12 Basic Geometry, Volume 2 of 2
This book can be downloaded and read in iBooks on your Mac or iOS device.
CK-12's Basic Geometry FlexBook, Volumes 1 through 2, is designed to present students with geometric principles in a more graphics-oriented course. Volume 2 includes 6 chapters: Similarity, Right Triangle Trigonometry, Circles, Perimeter and Area, Surface Area and Volume, and Rigid Transformations.
These books are great! Looking forward to more awesome books. Thanks ck12!