Answer:
B) 40°
Explanation:
Given: m∠AC = 109° and m∠BD = 29°
We need to find m∠BED.
Here we have to use the following formula.
m∠BED =

Here the major arc is m∠AC = 109° and the minor arc is m∠BD = 29°
Plug in these values in the above formula, we get
m∠BED = (109° - 29°)/2
= 80°/2
m∠BED = 40°
The answer is B) 40°