【单选题】In the flat triangular surface depicted above, if feet, what is the area of the surface in square feet (Figure not necessarily drawn to scale.)
网考网参考答案:E
网考网解析:
Since the leg of the right triangle is and the hypotenuse is x, we can tell that it is a 30-60-90 triangle and that the other leg is x12. The area of a triangle is 1/2 base times height, so the area is and since we know that feet and therefore x 2 =6 square feet, the area is .
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