x, why?): Daily Regents: Area of a Sector of a Circle (June 2015) Geometry
SOLVED: Find the area. Use 3.14 for pi. d=12 cm The diameter of the circle is 12 centimeters. What is the area of the circle? 18.85 square centimeters 113.04 square centimeters 452.39 square centimeters 131.95 square centimeters
Cos pi/12 - Find Value of Cos pi/12 | Cos π/12
Trigonometry Angles--Pi/12 -- from Wolfram MathWorld