题目内容
如图,△ABC中,∠ACB=90°,AB=
,BC=
,求斜边AB上的高CD.
8 |
2 |
AC=
=
=
,
∵S△ABC=
AC•BC=
CD•AB,
∴CD=
=
=
.
AB2-BC2 |
8-2 |
6 |
∵S△ABC=
1 |
2 |
1 |
2 |
∴CD=
AC•BC |
AB |
| ||||
|
| ||
2 |
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题目内容
8 |
2 |
AB2-BC2 |
8-2 |
6 |
1 |
2 |
1 |
2 |
AC•BC |
AB |
| ||||
|
| ||
2 |