Jawab:
Penjelasan dengan langkah-langkah:
Kubus
r = 18 satuan
O tengah ABCD
DT : TF = 5 : 1
Perhatikan segitiga TOF dan DBF
Jarak T ke ACF
= jarak T ke OF
= TF × DO × sin D / OF
= (1/6 DF) × DO × BF/DF × 1/OF
= 1/6 × DO × BF / OF
= 1/6 × 1/2 r√2 × r / (1/2 r√6)
= 1/6 r / √3
= 1/18 r√3
= √3 satuan ✔
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Jawab:
Penjelasan dengan langkah-langkah:
Kubus
r = 18 satuan
O tengah ABCD
DT : TF = 5 : 1
Perhatikan segitiga TOF dan DBF
Jarak T ke ACF
= jarak T ke OF
= TF × DO × sin D / OF
= (1/6 DF) × DO × BF/DF × 1/OF
= 1/6 × DO × BF / OF
= 1/6 × 1/2 r√2 × r / (1/2 r√6)
= 1/6 r / √3
= 1/18 r√3
= √3 satuan ✔