Question

a scalene triangle has a perimeter of 18a-14. one side is 10a 1;another side is 5a-10. what is the third side?

Answer 1

x = 3a - 5

Explanation:

scalene triangle has a perimeter of 18a - 14.

One side is 10a + 1 and another side is 5a - 10.

Then the third side will be

The perimeter is the sum of all sides.

Let the x be the third side. Then we have

Perimeter = sum of all sides

18a - 14 = 10a + 1 + 5a - 10 + x

18a - 14 = 15a - 9 + x

x = 3a - 5

HOPE THIS HELPS