The given diagram shows two overlapping right triangles having a common vertex O. If ∠AOD = 123°, what is the measure, in degrees, of ∠BOC? （A）33 （B）53 （C）57 （D）60 （E）66 O A C D B
The given diagram shows two overlapping right triangles having a common vertex O. If ∠AOD = 123°, what is the measure, in degrees, of ∠BOC?
（A）33 （B）53 （C）57 （D）60 （E）66
O A C D B
It probably it C
No need to thanks ;)
