Answer:
The Answer for angle F is 48°
Explanation:
Base angles of an isosceles triangle are equal
<D=<E
<E=66°
sum of angle's in a triangle ∆DEF equals 180°
<F+<E+<D=180°
let <F be x
x+66+66=180
x+132=180
x=180-132
x=48°
Therefore <F=48°
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