+0  
 
-1
54
3
avatar+464 

 

In the diagram below, O is the circumcenter of \(\Delta \)ABC. If Angle BAC = 28 and Angle OAC=32, then what is the degree measure of AOC?

https://latex.artofproblemsolving.com/d/e/3/de3eeab41d63a04f82bdbeb5b5d702a581fbc004.png
 

shreyas1  Nov 11, 2018
 #1
avatar+92608 
0

Because OA  and OC are radii of the circumcircle, then in triangle OAC,  angle OAC  = angle ACO  = 32

 

So....angle AOC  =    [ 180   -  2 measure of amgle OAC ] / 2  =  [ 180 - 2*32 ] / 2  =

 

[  180 - 64 ] / 2  =     58°

 

 

 

cool cool cool

CPhill  Nov 11, 2018

23 Online Users

avatar
avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.