In ΔPQR, PQ = 5 cm, QR = 12 cm and PR = 13 cm, then PQR is
In ΔPQR, PQ = 5 cm, QR = 12 cm and PR = 13 cm, then PQR is
A) an acute angled triangle
B) a right angled triangle
C) an obtuse angled triangle
D) an equilateral triangle
5 views