问题 填空题

  • (A) 条件(1)充分,但条件(2)不充分.
  • (B) 条件(2)充分,但条件(1)不充分.
  • (C) 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
  • (D) 条件(1)充分,条件(2)也充分.
  • (E) 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.

A piece of paper in the shape of an isosceles right triangle is cut along a line parallel to the hypotenuse of the triangle, leaving a smaller triangular piece. If the area of the triangle was 25 square inches before the cut, what is the new area of the triangle
(1) The cut is made 2 inches from the hypotenuse.
(2) There was a 40 percent decrease in the length of the hypotenuse of the triangle.

答案

参考答案:D

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