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rose4825 · Answer

@campbell_st @jim_thompson5910 @jtvatsim @wolf1728

campbell_st · Answer

well there are several ways to answer this 

in circle geometry there is a theorem that says the angle subtends at the centre is double the angle at the circumference, standing on the same arc... 

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this can be used to find angle BDA

the theorem can also be applied to angle BAD  

as what is the angle subtended by the chords AC and CD

the 3rd angle can be found by angle sum of a triangle... 

hope it helps

rose4825 · Answer

Lol, I know it can be answered in multiple ways, but I want to know if what I wrote would be considered correct or not

rose4825 · Answer

@jim_thompson5910

campbell_st · Answer

well in terms of the angles you are correct

the error I see in the arc length is the units... 

60/360 is a fraction... of a whole and not something that is measured in degrees... 

then angle measure helps to determine the fraction. 

The units for arc  length needs to be units of linear measure.

rose4825 · Answer

So how would I correctly do it? I have no idea how to figure out the arc length in different method than the one I used