Answer:
m∠a=\(45\°\)
Step-by-step explanation:
we know that
If two triangles are similar
then
The ratio of their corresponding sides are equal and the corresponding angles are equal
so
In this problem
m∠a=m∠d=\(45\°\)
m∠b=m∠e=\(25\°\)
m∠c=m∠f=\(180\°-70\°=110\°\) ----> sum of internal angles of triangle must be equal to \(180\°\)