摘要:如图:Rt△ABC平移到Rt△A1B1C1.若AB=3cm,BC=4cm,则A1C1= . 若∠A=50°则∠C1=
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3、如图,把△ABC平移到△A′B′C′,请回答:
(1)点A的对应点是
(2)图中平行的线段是AB∥
(3)图中相等的线段是AB=
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(1)点A的对应点是
A′
,点B的对应点是B′
,点C的对应点是C′
.(2)图中平行的线段是AB∥
A′B′
,BC∥B′C′
,AC∥A′C′
,AA?∥BB′
∥CC′
.(3)图中相等的线段是AB=
A′B′
,BC=B′C′
,AC=A′C′
,AA?=BB′
=CC′
.