Let the largest angle in a triangle be x .
Then :-
The smallest angle :-

The third angle :-

Let us find the measure of the three angles .
Sum of all angles in the interior of a triangle = 180°
An equation to find the value of each angle :-








Which means :-
Measure of the largest angle = 90°
Measure of the smallest angle :-


Measure of the third angle :-


<h3>Therefore :-</h3>
The measure of the largest angle = 90°
The measure of the smallest angle = 30°
The measure of the third angle = 60°
So if OP is a segment joining center O to point P, the MN is touching the circle on point P so it would be line MN.