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Trigonometric Ratios
Ratios in right triangles
060522a1_worksheet.ggb
Sine Ratio
060327a1.zir
SIN and COS 'graphic' calculator
060327e.zir
Make right triangles with given ratios.
060327b.html
060327b.zir
060327c.html
060327c.zir
From circling to surfing
060512a1_worksheet.ggb
Books
The
Ten-Centimeter Circle
is an introductory activity for trigonometry learning suggested by
Henri Picciotto
in his book
Geometry Labs
.
Trigonometric Delights
by Eli Maor; Chinese version:
毛起來說三角