Answer:
m<E = 60 deg
Step-by-step explanation:
The sum of the measures of the angles of a triangle is 180 deg.
m<E + m<F + m<G = 180
m<E + 75 + 45 = 180
m<E + 120 = 180
m<E = 60
60 is the ans
let angle E be x
then add all sides of triangle and subtract it from 180 you will get 60 degree as ans
