If in the following image angle ABC is 110 then what would be the angle AOC?

AOC is 140 ie un-colored AOC is 2ABC so the colored AOC is 360-2ABC =360-220 =140

Find the largest angle of Triangle ABC in the following image?

If l and m are parallel lines in the following image then what is the measure of angle x?

According to the image below, what is the measure (in degrees) of angle ABC?

If AF=1 and AB=AC=7 in the given image then what would be the radius of grey circle?