If 5, 5r and `5r^(2)` are the lengths of the sides of a triangle, then r cannot be equal to

If 7, 7r , 7r^2 are the lengths of the sides of a triangle, then r cannot be equal to:

If three successive terms of a G.P.with common ratio r(r>1) are the lengths of the sides of a triangle and "[r]" denotes the greatest integer less than or equal to "r" ,then 3[r]+[-r] is equal to____________.

If p,q and r are the lengths of the sides of a right triangle, PQR, and the hypotenuse r=sqrt(2pq) , then angleQPR =……………………

If the lengths of the sides of a triangle are 3,4 and 5 units then R (the circumradius) is

Let P Q R be a triangle of area with a=2,b=7/2,and c=5/2, where a, b and c are the lengths of the sides of the triangle opposite to the angles at P , Q and R respectively. Then (2sinP-sin2P)/(2sinP+sin2P) equals

If two sides of a tringle are of length 5 cm and 1.5 cm, then the length of third side of the triangle cannot be

If two sides of a tringle are of length 5 cm and 1.5 cm, then the length of third side of the triangle cannot be