Question

Please help with work shown will give accommodations!!!

Answer 1

(E) < BDE = 2x + y.

Explanation:

As triangle ABC is isosceles the 2 base angles are equal.

Therefore m < BAC = x.

Consider triangle ABD:

m < BDE = m < BAC + m < ABD ( external angle of a triangle theorem)

So < BDE = x + x + y = 2x + y.