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6 January, 20:57

A triangular pyramid has a surface area of 336 square inches, it is made up of equilateral triangles with a side length of 12 inches, what is the slant height

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  1. 7 January, 00:44
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    Since the sides are equilateral triangles the slant height is the same as the normal height of an equilateral triangle with sides of 12 inches ...

    sin60=h/12

    h=12sin60 in

    h=10.4 in (to nearest tenth)
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