9.If a right triangle has edge lengths a-b,a,and a+b(a and b are both positiveintegers),then the perimeter of the triangle might be( ?。?br />(英語小詞典:righttriangle直角三角形;positiveintegers正整數(shù);perimeter周長)
已知直角三角形三邊長分別為a-b,a,a+b(a、b均為正整數(shù)),則此直角三角形的周長可能是( ?。?/div>
四、附加題(每小題0分,共20分)
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