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Answer:
GN and US are the diagonals of the square.
Step-by-step explanation:
GN has a value of (3a - 5) and US has the value of (a + 1).
The diagonals of a square are equal. Therefore:
3a - 5 = a + 1
= 3a - 5 + 5 = a + 1 + 5
= 3a = a + 6
= 3a - a = a + 6 - a
= 2a = 6
= a = 3
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