Question

2012
0
MONDAY
254-112
A ABC N A DEF
Area of
A ABC = 6.4 cm2
OEF = 121 cm2
IL EF: 16+
and area of
Find BC
AB AC DE and DF​

Answer 1

Step-by-step explanation:

Answer

ΔABC∼ΔDE

ΔABC=16cm2

ΔDEF=25cm2

BC=2.3cm

EF=?

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

Hence, ΔDEFΔABC=(EFBC)2

2516=EF22.3×2.3

EF=8.265625

∴ EF=2.875cm

THANK YOU