∆ABC is similar to ∆DEF. The ratio of their

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∆ABC is similar to ∆DEF. The ratio of their perimeters is 4 : 1. The ratio of their areas is

∆ABC ~ ∆DEF

∴	AB	=	BC	=	AC
	DE		EF		DF

=	AB + BC + AC	=	4
	DE + EF + DF		1

∴	Area of ∆ABC	=	AB²	=	16	= 16 : 1
	Area of ∆DEF		DE²		1