Question

The two sides of a triangle are (5x+1)cm and (1x25x-4)cm. If its perimeter is (3x2+4x+2), Find the length of its third side.


Please give the real answer.

Answer 1

Answer:

- 15 is the answer..

Step-by-step explanation:

given - two sides of triangle-

(5x+1)cm

(1x25x-4)cm

perimeter- (3x2+4x+2)

we know that

perimeter of triangle = a + a + a

(3x2+4x+2) = (5x+1) + (1x25x-4) + a

8 + 4x = 5x + 1 + 25x - 4 + a

8 + 4x = 30x - 3 + a

8 + 3 = 30x - 4x + a

11 = 26 + a

11 - 26 = a

[- 15 = a]

Answer 2

Answer:

- 15

Step-by-step explanation:

given - two sides of triangle-

(5x+1)cm

(1x25x-4)cm

perimeter- (3x2+4x+2)

we know that

perimeter of triangle = a + a + a

(3x2+4x+2) = (5x+1) + (1x25x-4) + a

8 + 4x = 5x + 1 + 25x - 4 + a

8 + 4x = 30x - 3 + a

8 + 3 = 30x - 4x + a

11 = 26 + a

11 - 26 = a

[- 15 = a]