Geometry

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The length of the hypotenuse of a 30°-60°-90° triangle is 7. Find the perimeter.
7/2+21/2sqrt3
21+7sqrt3
7+21sqrt3
21/2+7/25sqrt3

  • Geometry -

    Ths sides of a 30-60-90 triangle are in the ratios 1:√3:2

    so, you have scaled things by 7/2, making the sides
    7/2:7√3/2:7

    7/2 + 7√3/2 + 7 = 7/2 (3 + √3)
    = 21/2 + 7/2 √3

    Is that 7/25√3 a typo?

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