Answer
$22cm, 22cm, 29cm $
Work Step by Step
Let the equal side of an isosceles triangle be $x$
Unequal side is $7$ centimeters longer than the equal side.
$x+7$
Perimeter of an isosceles triangle is $73$ centimeters.
$x+x+x+7=73$
$3x+7=73$
$3x=66$
$x=22$
Equal side : $ x = 22 $ cm
Unequal side : $x+7 = 22 + 7 = 29$ cm
Three sides of an isosceles triangle are $22cm, 22cm, 29cm $
