Answer:
32°
Step-by-step explanation:
soln:
let D be x then
since the triangle is an isosceles triangle base angles are equal so,
D+E+F=180°[sum of angles of a traingle]
or,x+x+116°=180°
or,2x+116°=180°
or,x=(180-116)/2
•°•x=32°
hence D=32°
