What is the perimeter of the figure above? (Note, figure not necessarily drawn t

游客2024-01-14 59

问题 What is the perimeter of the figure above? (Note, figure not necessarily drawn to scale)

选项 A、155
B、185
C、220
D、235
E、250

答案 E

解析 To determine the length of the unmeasured side, divide the figure into a rectangle with length 65 and a right triangle. If the height of the triangle is 40 and the hypotenuse is 50, then by the Pythagorean theorem the other leg is 30; the top segment of the rectangle is 65 like its opposite side, so the unmeasured side is 30+65=95. The perimeter is the sum of the sides: 95+40+65+50=250.

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