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gogolik [260]
2 years ago
14

Given that ABCD is a rhombus, what is the value of x?

Mathematics
1 answer:
Kruka [31]2 years ago
3 0

Answer:

  D.  18

Step-by-step explanation:

∠DAC ≅ ∠BCA and the diagonals cross at right angles, so the two marked angles are complementary.

  (5x -18) +x = 90

  6x = 108 . . . . . . . . . simplify, add 18

  x = 18 . . . . . . . . . . . divide by 6

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