the perimeter of triangle is 6a + 5b - 2c . if two sides are a -b+ 6c and 3a +6b - 10 c , find the third side .
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Step-by-step explanation:
a-b+6c+3a+6b-10c
=4a+5b-4c
third side
= 6a+5b-2c - (4a+5b-4c)
= 6a+5b-2c -4a-5b+4c
= 2a+2c
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