Question : x, y, and z are the sides of a triangle. If z is the largest side and x² + y² > z², then the triangle is a:

Question : What is the position of the circumcenter of an obtuse-angled triangle?

Question : In a right-angled triangle PQR, right-angled at Q, the length of the side PR is 17 units, the length of the base QR is 8 units, and the length of the side PQ is 15 units. If $\angle RPQ = \sin\alpha $, then $\sin\alpha + \cos\alpha$ is:

Question : If $\triangle PQR$ is right angled at Q, then what is the value of $\cos (P+R)$?