Need help please!! If ∠D = 60° and ∠B = (8x - 4)° then find x and identify the equation you used to find x.
https://lh4.googleusercontent. com/V5rus6KfRHl9zugH_9XNx8n_tZlzt8G Jbmw54DRdPWsmEk1-q_Xhsg4Lf-qKQyB56L m5rMkkR_DzA6Q3PJRHNS4uU4HHrqM6LNMXs _KDKhPjHoxWSFSyOYspQPh5=w474

x=7

Step-by-step explanation:

The problem tells us:

DE=EB

AE=EC

Then, ∠DEC=∠AEB (vertical angles)

Due to these three pieces of information, we can say that triangles DEC and AEB are congruent through Side Angle Side (SAS).

Next, we can use Corresponding Parts of Congruent Triangles are Congruent (or CPCTC) to state that ∠D=∠B.

Substitute the values of the two angles.

∠D=∠B

60°=(8x-4)°

56°=8x°

x=7

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.