RST JKL RS 8 cm JK 12 cm RST 32 cm find the perimeter of JKL?

The question, as it appears, cannot be answered without the following assumptions - none of which have any justification for making them.

RST and JKL are triangles. The triangles are similar and in correspondence follows their naming. If that is true then the perimeter of JKL is 48 cm.