2. 外语
  3. If points X and Y are two distinct points in the coordinate plane, which of the following can have more than one possible value?

If points X and Y are two distinct points in the coordinate plane, which of the following can have more than one possible value?

admin2022-11-20  56
问题 If points X and Y are two distinct points in the coordinate plane, which of the following can have more than one possible value?
选项 A、The circumference of a circle with diameter XY.
B、The area of a square with diagonal XY.
C、The perimeter of a right isosceles triangle with a leg XY.
D、The area of a circle with chord XY.
E、The area of an equilateral triangle with base XY.
答案D
解析 此题考查的是平面几何的综合知识。有些人误选了C，是因为不了解leg是什么意思，认为XY既可以是斜边，也可以是直角边，其实在直角三角形中，斜边是hypotenuse，直角边称为腰(leg)。
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