Answer:
Step-by-step explanation:
<A = <C
The angles meeting at B and are part of the triangle are vertically opposite and therefore equal.
<E and <D are equal. (given)
Therefore by angle angle angle, the two connected triangles are similar
AD/CE = 12/x from <A = <C
27/23.4=12/x Cross Multiply
27x = 12*23.4 Combine the Right Side
27x = 280.8 Divide by 27
x = 280.8/27
Answer: x = 10.5 cm
