Mrs.D Math · 7th Grade

ANGLE
ARENA

Angle & Triangle Relationships
Comp = 90°
Supp = 180°
Vertical = Equal
Triangle = 180°
◆ Complementary
◆ Supplementary
◆ Vertical
△ Triangle Sum
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📚 Angle & Triangle Relationships

Complementary Angles

Two angles that add up to 90°.

30° + 60° = 90°

Supplementary Angles

Two angles that add up to 180°.

110° + 70° = 180°

Vertical Angles

Opposite angles when two lines cross. They are always equal.

65° ↔ 65°

Triangle Angle Sum

All three angles in a triangle add to 180°.

50° + 60° + 70° = 180°

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COMPLEMENTARY
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