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tangare [24]
3 years ago
5

The right shows abcd is a rhombus show that ac is the bisector of bad a is 140 degrees​

Mathematics
1 answer:
icang [17]3 years ago
7 0

Explanation:

The sides of a rhombus are all the same length, by definition, so ΔACB ≅ ΔACD by SSS, so ∠ACB ≅ ∠ACD by CPCTC. Those equal angles sum to ∠BAD by the angle sum theorem, so AC is a bisector of ∠BAD by the definition of an angle bisector.

_____

The measure of ∠BAD is irrelevant..

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