Alternate Interior Angles

What are alternate interior angles

In the applet below, a TRANSVERSAL intersects 2 PARALLEL LINES. When this happens, there are 2 pairs of ALTERNATE INTERIOR ANGLES that are formed.

New Resources

Function art 3D - waiting shed (v2)
What Do You See?
Slope Illustrator (2)
Pythagorean Template: Integer Legs
အခြေခံ data အခေါ်အဝေါ်များ

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Tessellation 2
Topics
i to the power sqrt i
Angles at a Point
บวกจำนวนเต็ม

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Scatter Plot
Tree Diagrams
Fractions
Similar Triangles
Upper and Lower Sum or Riemann Sum