Answer:
42
Step-by-step explanation:
because the triangles are congruent, we can place the angle x in CDE to solve for it. Knowing the sum of all angles in a triangle is 180, we can set up the formula below.
62 + 65 + x = 180
Additionally, because the triangles are congruent, we know that the length of CD is equal to GH, letting us set up this formula:
x - y = 11
Solving the first formula, we now know the value of x, 53.
62 + 65 + 52 = 180
Plugging that into the second formula and solving, we get 42.
53 - 42 = 11
