Question

△ABC∼△DEF If BC=2.2 cm and EF=2.75 cm findthe ratio of the areas of △ABC and △DEF 2`​

Answer 1

Answer:

Answer

ΔABC∼ΔDE

ΔABC=16cm

2

ΔDEF=25cm

2

BC=2.3cm

EF=?

Ratio of area is equal to square of ratios of its corresponding sides

Hence,

ΔDEF

ΔABC

=(

EF

BC

)

2

25

16

=

EF

2

2.3×2.3

EF=

8.265625

∴ EF=2.875cm