ä½ç© \(V\) ã¯æ¬¡ã®å¼ã§æ±ãããã¾ã:
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- a^2 + b^2 = 7^2 + 24^2 = 49 + 576 = 625
- ç´è§ä¸è§å½¢ã®é¢ç© \(A\) ã¯æ¬¡ã®ããã«ä¸ãããã¾ã:
- A = rac{1}{2} imes ext{åºè¾º} imes ext{é«ã} = rac{1}{2} imes 7 imes 24 = 84
- V = \pi imes 3^2 imes 10 = 90\pi \quad ext{ç«æ¹ã¡ã¼ãã«}
- A = 2\pi r (r + h)
- A = 2\pi imes 3 imes (3 + 10) = 2\pi imes 3 imes 13 = 78\pi \quad ext{å¹³æ¹ã¡ã¼ãã«}
