单选题
Two sides of a right triangle are 5 and 6. Which of the following could be the length of the third side?
【正确答案】
D
【答案解析】Either (i) 5 and 6 are the lengths of the two legs, or (ii) 5 is the length of a leg, and 6 is the hypotenuse. In either case use the
Pythagorean theorem:
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Statements Ⅰ and Ⅱ only are true.
Pythagorean theorem:
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[*]
Statements Ⅰ and Ⅱ only are true.