Question

The perimeter of triangle is 6a+5b-2c. If two sides are a-b+6c and 39+6b-10. Find third side.​

Answer 1

Answer:

add both side and subtract it from your perimeter

Answer 2

let perimeter of third side be x

we know that,

perimeter of triangle= sum of all side

6a+5b-2c= a-b+6c+39+6b-10+x

6a+5b-2c= a+5b+6c+29+x

6a-a+5b-5b-6c-2c-29=x

5a-8c-29=x

So the third side =5a-8c-29