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  • Hit-ê-lâng ū koh chi̍t-khu, hō͘ niû-chhe sǹg-tsòe 168 bó͘; chhân-tsú khì-niû-i tsai ū ke-sǹg 4 bó͘ 2 hun. Hit-khu 245 pō͘ 3 chhioh 5 chhùn tn̂g, chīu kúi-pō͘-khoah? Tek 160.
  • Kiám-chhái檢彩 îⁿ-khoân tùi-sim kàu kîⁿ = h, chīu.

    • 1° Kîⁿ chi̍t-îⁿ = h2×3·1416.
    • 2° Khoân-lāi ê pêng-hong-chek平方積 = h×h×3·1416.

    Kiám-chhái檢彩 tùi kiû-sim球心 kàu bīn-téng = h chīu kiû-bīn球面 ê pêng-hong-chek平方積 = 4 h×h×3·1416.

    1. Chhia-lûn tùi sim kàu kîⁿ 1 chhioh chīu lìn chi̍t-ê一个 ōe kiâⁿ kúi-chhioh? Koh, kiâⁿ chi̍t-phò͘-lō͘ tio̍h lìn kúi-pái?

    Khó-kiàn可見 tio̍h lìn lîm-lîm-á 2865 pái.

    1. Thian-bun-koán ū chi̍t-keng îⁿ-îⁿ, tùi tiong-ng ti̍t-ti̍t直直ū 4 tn̄g. Bóe pang 1 chhioh khoah 2 tn̄g ta̍t chi̍t-kho͘-gûn, chīu hit-keng ê tōe-pán ta̍t kúi-kho͘幾箍?
    2. Ēng iû-pháng-si thang tsòe kiû, kek-khì hō͘-i móa chīu thiⁿ-tiong ōe phû. Kiám-chhái檢彩 tùi kiû ê tiong-sim kàu bīn-téng 6 tn̄g chīu pháng-si 1 khoah tio̍h kúi-bā?

    Kiû-bīn球面 = 4 × 60 × 60 × 3·1416 chhioh. Chi̍t-bā = 3 chhioh, chīu chi̍t-bā pêng-hong = 3×3=9 pêng-hong-chhioh平方尺. Khó-kiàn可見 só͘-tio̍h ēng ê si 解析失敗 (語法錯誤): {\displaystyle = \frac{4×60×60×3·1416}{9}=5026·56 } . Thang liān ê siàu.

    1. Kiám-chhái檢彩 tùi tōe-kiû地球 ê sim kàu bīn-téng面頂 13000 chīu lâi se̍h tōe-kiû地球 kúi-lí? Tek 81681・6.
    2. Tōe-kiû地球 bīn-téng面頂 kiōng kúi-bó͘? Tek 1146809664000.
    3. Kiám-chhái檢彩 tùi ji̍t-thâu日頭 bīn-téng面頂 tsǹg kè tiong-sim kàu bīn-téng面頂 ū 2940000 , chīu kiâⁿ se̍h ji̍t-thâu日頭 chi̍t-pái-kúi-lí? Tek 9236304.