Question

The perimeter of triangle is ( 17x-12) cm
two side are (x-5) cm and 7x+5 cm.
long. What is length of its third side​

Answer 1

${\huge{\boxed{\color{lightpink}{AN}{\pink{SW}{\purple{ER = }}}}}}$

$Perimeter = (17x - 12) cm$

So,

$1st \: \: side \: = x - 5 \\ \\ 2nd = 7x + 5 \\ \\ 3rd \: \: side \: = perimeter \: - (1st + 2nd \: \: side )$

$x - 5 + 7x + 5 \\ \\ { \boxed{ \pink{=8x}}}$

Now,

$17x - 12 - 8x \\ \\ = { \boxed{ \green{9x - 12}}} \: \: is \: \: the \: \: 3rd \: \: side$

$HOPE \: \: IT \: \: HELPS \\ </p><p>MARK \: \: BRAINLIEST \: \: PLS :) </p><p>$