tolong dijawab dengan benar besok dikumpul
Jawab:
a) PQ = 24 cm
b) OT = 9 cm
c) TR = 16 cm
Penjelasan dengan langkah-langkah:
Diketahui:
--> PR = 20 cm
--> OP = 15 cm
OR = √(PR²+OP²) = √(20²+15²)
= √(400+225) = √625 = 25
--> OR = 25 cm
Hitunglah:
a) PQ = 2PT
Perbandingan sebangun
PT/OP = PR/OR
PT/15 = 20/25
PT = 15×20÷25
PT = 12 cm ∴
PQ = 2PT = 2×12
PQ = 24 cm
b) OT
Perbandingan sebangun
PT/OT = PR/OP
12/OT = 20/15
OT = 12×15÷20
OT = 9 cm
c) TR
TR = OR-OT
TR = 25-9
TR = 16 cm
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