TY  - BOOK
AU  - Sarmiento, Felipe M.
AU  - De Castro, Wilfredo N.
TI  - Plane trigonometry with basic trigonometry: a simplified approach 
SN  - 9789719654162
PY  - 2016///
CY  - Manila
PB  - Unlimited Books Library Services & Publishing Inc.
KW  - Plane geometry
KW  - Trigonometry
N1  - Includes references
N2  - Contents: Basic trigonometric functions of acute angles. -- Lines, planes and angles. -- Triangles. -- Quadrilaterals. -- Polygons. -- Circles
ER  -