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Rhombus Opposite Angles Theorem
See It in Action
Two examples of the idea done right—and one common look-alike that is not right.
EXAMPLE
EXAMPLE
NON-EXAMPLE
Statement
In a rhombus, opposite angles are congruent (equal in measure).
In simple terms:
The angles that face each other in a rhombus are the same.
Example:
In rhombus ABCD, ∠A = ∠C and ∠B = ∠D.
Why It Matters:
This property helps in calculating unknown angles and proving a quadrilateral is a rhombus.
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