tolong no 3 ya pakai cara ,dijadikan bangun ruang (limas volume) !!!

Materi LimasPanjang sisi segitiga yang lain =[tex] \sqrt{10^2-6^2} = \sqrt{64} = 8 cm [/tex]
Luas alas = 1/2 × a × t = 1/2 × 6 × 8 = 24 cm^2.
Volume limas =[tex] = \frac{1}{3} \times L \times t = \frac{1}{3} \times 24 \times 15 = 120 cm^3 [/tex]