Answer:
8.9k
Explanation:
We just have to add together the length of the three sides to find the perimeter of the triangle.
(1.8k-5)+(3.5+6.1k)+(k+1.5) = 1.8k-5+3.5+6.1k+k+1.5
Combine like terms.
1.8k-5+3.5+6.1k+k+1.5 = 8.9k + 0
= 8.9k
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