JEE Main 201910 Jan, Morning shiftMathematicsHardCoordinate Geometry478× since 2002If 5, 5r, 5r² are the lengths of the sides of a triangle, then r cannot be equal to :AOption A. 74{7 \over 4}47BOption B. 54{5 \over 4}45COption C. 34{3 \over 4}43DOption D. 32{3 \over 2}23CheckSkip · show solution