题目
题型:解答题难度:一般来源:不详
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答案
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三角形的斜边长=
(
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三角形的周长=(
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答:直角三角形的面积是1cm2,周长是2(
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核心考点
举一反三
(1)(
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(2)
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A.12
| B.24
| C.12
| D.24
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(1)(
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(2)已知x=
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(2)将五个空格填上恰当的数,使得每一行、每一列、每一对角线3个数的和都为0.
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(
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18 |
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a-4b | ||||
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ab |
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A.12
| B.24
| C.12
| D.24
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24 |
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