Alternate angles

Alternate angles

I say a corner located in the slant facing in the corners where one other straight line (n) communes with 2 straight lines (l, m) in the plane top with the alternate angles (さっかく ,Alternate angles) like a right figure, and there is it. In the figure, ,∠ a and ∠ y ,∠ b and ∠ x are alternate angles.

2 straight lines l It is the equivalent that alternate angles are equal to, m being parallel.

Allied item

• Corresponding angles

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