Panjang RS = ...... A. 18 CM B. 20 CM C. 21 CM D. 24 CM tolongggg

PR = akar 12 kuadrat + 9 kuadrat
= akar 144 + 82
= akar 225 = 15
PS = akar 24 kuadrat + 7 kuadrat
= akar 576 +49
= akar 625 = 25
RS = akar 25 kuadrat - 15 kuadrat
= akar 625 - 225
= akar 400 = 20 cm

PR = √PQ²+QR²
PR = √12²+9²
PR = √144+81
PR = √225 = 15 cm
PS = √PT²+ST²
PS = √24²+7²
PS = √576+49
PS = √625 = 25 cm
RS = √PS²-PR²
RS = √25²-15²
RS = √625-225
RS = √400 = 20 cm