(1)△ABC和△DEF相似;
根据勾股定理,得AB=2
,AC=
,BC=5;
DE=4
,DF=2
,EF=2
;
∵
=
,
∴△ABC∽△DEF.
(2)答案不唯一,下面6个三角形中的任意2个均可;△P 2P 5D,△P 4P 5F,△P 2P 4D,△P 4P 5D,△P 2P 4P 5,△P 1FD.
(1)△ABC和△DEF相似;
根据勾股定理,得AB=2
,AC=
,BC=5;
DE=4
,DF=2
,EF=2
;
∵
=
,
∴△ABC∽△DEF.
(2)答案不唯一,下面6个三角形中的任意2个均可;△P 2P 5D,△P 4P 5F,△P 2P 4D,△P 4P 5D,△P 2P 4P 5,△P 1FD.