In an isosceles triangle PQR, sides QR and RP are equal and `cosP + cos Q + cosR=sqrt(2)` possible values(s) of cosR can be

In an isosceles triangle PQR, PQ =PR and S is any point on side QR. Then prove that: PQ^(2)-PS^(2)=QSxxSR.

In an isosceles triangle PQR, PQ =PR and S is any point on side QR. Then prove that: PQ^(2)-PS^(2)=QSxxSR.

In triangle Delta PQR, the atitudes from P,Q and R measure 5,4 and 4 respectively.The value of sqrt(21(QR)^(2)) is

The base of vertices of an isosceles triangle PQR are Q 1,3 and R -2,7.The vertex p can be :

In triangle PQR sides QR and RQ respectively produced to points S and T. If angleSPR=135^(@) and anglePQT=110^(@) find anglePRQ

In a triangle PQR ,P is the largest angle and cos P = 1/3 . further the triangle toches the side PQ. QR and RP at N , L and M respectively , such that the lengths of PN , QL , and RM are consecutive even integers. Then possible length(s) of the side(s) of the triangle is(are)

In a triangle PQR, P is the largest angle and cos P = 1//3 . Further the incircle of the triangle touches the sides PQ. QR and PR at N, L and M, respectively, such that the length of PN, QL, and RM are consecutive even integers. Then possible length (s) of the side(s) of the triangle is (are)

In a triangle PQR, P is the largest angle and cos P = 1//3 . Further the incircle of the triangle touches the sides PQ. QR and PR at N, L and M, respectively, such that the length of PN, QL, and RM are consecutive even integers. Then possible length (s) of the side(s) of the triangle is (are)