Question

ask Calculator Bookwork code: N93 allowed The bunting flags below are all isosceles triangles. Work out the size of angle DFE. Give your answer in degrees (°). D 66° F Watch video E Not drawn accurately​

Answer 1

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°