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Yesika
Yesika asked in Sains & MatematikaMatematika · 7 years ago

Diketahui kubus ABCD.EFGH dengan rusuk 4 cm. Tangens sudut antara garis CG dengan bidang BDG adlh?

1 Answer

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  • Cingcangkeling
    Lv 7
    7 years ago
    Favorite Answer

    Pada bidang alas, buat kedua diagonal dan berpotongan di P

    Sudut antara garis CG dengan bidang BDG sama dengan sudut antara CG dengan garis GP.

    Lihat ∆CGP

    tan ∠(CG,GP) = PC / CG

    ..........................= ½a√2 / a

    ..........................= ½√2..<-- jawaban

    Ok ?

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