2. 职称英语
  3. What is the area of the trapezoid shown above?A、50B、86C、136D、288E、2,304CThe

What is the area of the trapezoid shown above?A、50B、86C、136D、288E、2,304CThe

游客2024-01-12  6
问题 What is the area of the trapezoid shown above?
选项 A、50
B、86
C、136
D、288
E、2,304
答案 C
解析 The correct answer is C. The quickest way to solve this problem is to note that, if you draw a line from C perpendicular to AD, you create a rectangle whose area is 16x8, or 128 square units. Because the trapezoid is slightly larger than the rectangle, the area must be slightly greater than 128. Only answer choice C works. You can also calculate the area of the small tri-angle you created when you drew the perpendicular line:(2x8)= 8; 128 + 8 = 136.
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