00:01
In this problem, we have been given an image which is shown over here, and here we need to determine whether the given statement is true or false.
00:10
And the given statement is that the measure of the arc rs is equal to 90 degrees.
00:17
So let us determine the measure of the arc rs.
00:21
Now, the measure of an arc is equal to the measure of the corresponding central angle.
00:26
So in this case, we can see that y is the center of the circle.
00:33
And we have the arc rs.
00:36
So if we go from r to the center y, and then we go from s to the center y, this angle over here will be the central angle.
00:45
That is, we have the angle r, y, s.
00:49
So let's just write that down.
00:51
The measure of the arc r s will be the measure of the angle.
00:57
Rys.
00:58
So let us determine the measure of the angle rys...