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 |