Question

is given that ΔABC ≅ΔFDE and AB = 5 cm, ∠B = 40° and ∠A = 80°. Then which of the following is​

Answer 1

∆ABC congruence to ∆FDE ,

then,

AB = FD

BC=DE

AC=FE

and

angle ABC = angle FDE

angle BCA = angle DEF

angle CAB =angle EFD

now, given, angle ABC = 40° and angle CAB = 80° and AB = 5 cm

so, angle FDE = 40° and angle EFD= 80°

and FD = 5 cm

also DF = 5 cm

and angle DEF = 60°