+0  
 
0
61
1
avatar

In Triangle ABC, the circumcenter and orthocenter are collinear with vertex A. Which of the following statements must be true?

(1)  Trinagle ABC must be an isosceles triangle.
(2)  Triangle ABC must be an equilateral triangle.
(3)  Triangle ABC must be a right triangle.
(4)  Traingle ABC must be an isosceles right triangle.

Enter your answer as a comma-separated list. If there is no correct option, write "none".

 Nov 15, 2019
 #1
avatar
0

Trianlge ABC must be a right triangle, so the answer is (3).

 Nov 15, 2019

12 Online Users

avatar