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Diketahui limas segiempat beraturan T.ABCD dengan panjang AB = 8 cm dan panjang TC = 8√2. Tentukan jarak titik A terhadap rusuk TC​

Diketahui limas segiempat beraturan T.ABCD dengan panjang AB = 8 cm dan panjang TC = 8√2. Tentukan jarak titik A terhadap rusuk TC​

Diketahui limas segiempat beraturan T.ABCD dengan panjang AB = 8 cm dan panjang TC = 8√2. Tentukan jarak titik A terhadap rusuk TC​

Dimensi Tiga

Limas Segi Empat Beraturan

AB = BC = 8 cm

TA = 8√2 cm

 

∆TAC sama sisi

∠T = ∠A = ∠C = 180°/3 = 60°

 

X tengah TC

AX ⊥ TC

 

Jarak A ke TC

= AX

= AC sin C

= 8√2 × sin 60°

= 8√2 × 1/2 √3

46 cm

 

 

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