tolong beri tahu rumus nya ya kak

PS/(PS+QS) = TS/RQ
12/(12+4) = 16/RQ
12/16 = 16/RQ
12xRQ = 16x16
12xRQ = 256
RQ = 256 : 12
RQ = 21,3 cm




PT/TR = PS/QS
6/TR = 12/4
12xTR = 6x4
12xTR = 24
TR = 24 : 12
TR = 2 cm