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PQ = √13²-12²
PQ = √169-144
PQ = √25
PQ = 5 cm
b. gunakan perbandingan
13PS = 12×5
13PS = 60
PS = 60÷13
PS = 4,6
c. gunakan perbandingan
12QS = 5×4,6
12QS = 23
QS = 23 ÷ 12
QS = 1,9
Semoga membantu :)