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A.S.T.C
Author:
Ang Wee Kiat
Here you can explore how the sign of the trigonometrical ratios change when the angles are in different quadrants. Remember the acronym "ASTC - All School Teachers Care! :)"
GeoGebra
New Resources
Introduction
Odd or Even
van Aubel's Theorem
Napoleon's Theorem
Witch of Agnesi - A Classical Construction
Discover Resources
Monty Hall Problem
Not SSA
Triangle Project
Graphing Linear Equations Using Slope and y-intercept (Pract
!Arithmetic1
Discover Topics
Confidence Interval
General Quadrilateral
Hypergeometric Distribution
Scalene Triangles
Arithmetic Mean