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sashaice [31]
4 years ago
9

A-14 b-39 c-51 d-90 i’ll appreciate any help

Mathematics
1 answer:
Nat2105 [25]4 years ago
7 0

Answer:

14

Step-by-step explanation:

2x + 11 + 4x - 5 = 90° because this is a right triangle.

6x + 6 = 90°

6x = 84

x = 14

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