Proof Companion
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Given:
ABCD is a kite, AB < AD
Prove:
The angles between the unequal sides are equal
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AB = BC and CD = DA
Given
△ABD = △CBD
ABCD is a kite
BD = BD
Algebra
CPCTC
SSS (Side-Side-Side)
Two points determine a line
Definition
∠A = ∠C
Statements
Draw BD
Reasons