Answer :

It is given in the question that,


AB = 5 cm

FD = 5 cm

B = 40°

A = 80°

We know that sum of all angles of a triangle is equal to 1800

A + B + C = 180o

80o + 40o + C = 180o

C = 180o - 1200

= 60o

As, Angle C = Angle E

Angle E = 60o

Hence, option (B) is correct

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