Question

the perimeter of a triangle is 6a+5b -2c. if two sides sare a-b+6c and 3a+6b -10c,find the third side.

Answer 1

2a-2c is correct answer

Answer 2

TWO SIDES OF TRIANGLE ARE:- (a-b+6c) and (3a+6b-10c)

ADDING BOTH THE SIDES:

a - b - 6c
3a + 6b - 10c
---------------------
4a + 5b - 4c

============================

PERIMETER (given) :- (6a + 5b - 2c)

THIRD SIDE:
(PERIMETER OF TRIANGLE) - (SUM OF BOTH SIDES OF TRIANGLE)


6a + 5b - 2c
+4a + 5b - 4c
________________
(-)4a (-)5b (+)4c
________________

so, the equation is:-

6a + 5b - 2c
- 4a - 5b + 4c
______________
2a + 2c

so, the third side of the triangle is :- 2a+2c

HOPE IT WAS HELPFUL, MATE!!!