Systerms : system terms : Interior Opposite Angle

A (41) | B (23) | C (62) | D (45) | E (33) | F (34) | G (18) | H (16) | I (28) | J (2) | K (5) | L (14) | M (29) | N (17) | O (10) | P (62) | Q (10) | R (41) | S (74) | T (31) | U (12) | V (12) | W (8) | X (1) | Y (2) | Z (2)

An interior alternate angle is the angle that lies in between two lines when they're crossed by a third line, sitting on opposite sides. It’s an important tool in middle school geometry to figure out if lines are parallel.

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