Answer:
63
Step-by-step explanation:
<h3>
You have the correct answer. It is choice B. Nice work.</h3>
K is the midpoint, so 
and 
, and along with the congruent vertical angles (
and 
), you would use the SAS (side angle side) congruence theorem to prove the inner pairs of triangles to be congruent.
So, 
(top and bottom triangles) and 
(left and right triangles).
Then through CPCTC, we can show the corresponding pieces are congruent leading to 
and 
showing the opposite sides of the quadrilateral are congruent. Therefore we do have a parallelogram and enough information to prove it as such.
Side note: CPCTC stands for "corresponding parts of congruent triangles are congruent".
Answer:
If I am correct, the answer should be 70.1 degrees.
544 people will upgrade. To get this just make them into fractions
X/878 = 62/100
And then cross multiply
