Mathematics

8th

grade

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Tetraedrul regulat

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10 questions

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  • 1. Multiple Choice
    1 minute
    1 pt
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    Fețele laterale ale unui tetraedru regulat sunt

    triunghiuri dreptunghice

    triunghiuri isoscele

    triunghiuri echilaterale

    triunghiuri oarecare

  • 2. Multiple Choice
    5 minutes
    1 pt

    Aria bazei unui tetraedru regulat cu muchia de lungime 6 cm este

    36336\sqrt{3}

    939\sqrt{3}

    636\sqrt{3}

    12312\sqrt{3}

  • 3. Multiple Choice
    2 minutes
    1 pt

    Aria laterală a tetraedrului regulat cu muchia egală cu l este

    l234\frac{l^2\sqrt{3}}{4}

    4l2344\frac{l^2\sqrt{3}}{4}

    3l2343\frac{l^2\sqrt{3}}{4}

    l23l^2\sqrt{3}

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