Question

if triangle ABC ~ triangle DEF and angle A = 45° , angle C =55° , then find angle E..
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Answer 1

A= D

B=E

C=F

sum or three Angeles of a triangle= 180

45+55+E = 180

180- 100

E= 80

Answer 2

Answer:

angle A = angle D= 45°

angle C= angle F= 55°

angle B=?

angle A+ angle B+ angle C= 180° ( angle sum property of triangle)

45°+ angle B+55°= 180°

100°+ angle B= 180°

angle B= 180°-100°= 80°