(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)(2)答案不唯一,下面6个三角形中的任意2个均可;
△DP2P5,△P5P4F,△DP2P4,△P5P4D,△P4P5P2,△FDP1.
(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)(2)答案不唯一,下面6个三角形中的任意2个均可;
△DP2P5,△P5P4F,△DP2P4,△P5P4D,△P4P5P2,△FDP1.