Question

The perimeter of a trianlge is 8x + 9 and two sides are 3x +1 and 2x + 1. Find the third side.

Answer 1

Answer:

c=p-a+b=(8x+9)-(3x+1)+(2x+1)=7x+9

Step-by-step explanation:

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Answer 2

Answer:

$\bold{\huge{\fbox{\color{Green}{☑Verified\:Answer}}}}$

$in \: \: isosceles \: traingle \: two \: sides \: are \: equal \: , \\ so, \\ 3x - 1 = 2x + 2 \\ x = 3 \\ \\ perimeter = sum \: of \: all \: sides \: \\ \\ = 3x - 1 + 2x + 2 + 2x \\ = 7x + 1 \\ substituting \: value \: of \: x \\ perimeter = 7(3) + 1 \\ = 21 + 1 \\ = 22 \\ thus \: x = 3 \: and \: perimeter \: of \: a \: traingle = 22square \: units$