Bitta piramidaning massasi ikkita shar massasiga teng. Beshta sharning massasi ikkita kubning massasiga teng. Agar kubning massasi 8 grammga teng bo'lsa, sakkizta kubning massasi nechta piramida massasiga teng bo'ladi?
- 20ta
- 50ta
- 40ta
- 10ta
📝 Batafsil tushuntirish
1 ta piramida = 2 ta shar.5 ta shar = 2 ta kub.
1 ta kub = 8 gramm.
8 ta kubning massasi = 8 × 8 = 64 gramm.
1 ta piramidaning massasini topamiz:
2 ta kub = 2 × 8 = 16 gramm = 5 ta shar. Demak, 1 ta shar = 16 / 5 = 3,2 gramm.
1 ta piramida = 2 ta shar = 2 × 3,2 = 6,4 gramm.
Piramidalar soni = 64 / 6,4 = 10 ta.