Question

The perimeter of a triangle is 7p-5p+11 and two of it sides are p+2p-1 and 3p-6p+3. Find the third side of triangle.​

Answer 1

Answer:

perimeter of triangle=sum of all sides let third side be x

7p-5p+11 = p+2p-1 +3p-6p+3 +x

2p+11 = 3p-1 +(-3p)+3+x

2p+11 = 3p-1-3p+3+x

2p+11 = 0+2+x

2p+11 = 2+x

2p+11-2 = x

2p+9=x

third side = 2p+9