The area of a rhombus id `144 c m^2`and one of its diagonal is double the other.The length of the longer diagonal is(a)12 cm (b) 16 cm(c)18 cm (d) 24 cm

The area of a rhombus id `144 c m^2`and one of its diagonal is double

1.	The area of a rhombus id `144 c m^2`and one of its diagonal is double the other.The length of the longer diagonal is(a)12 cm (b) 16 cm(c)18 cm (d) 24 cm
Answer» Area of rhombus=`1/2` x product of diagonals let `d_1=d and d_2=2d` substituting in the formula we get=>`1/2 xx d xx 2d=144` =>`d=+-12` rejecting negative sign as side cannot be negative. length of diagonals are 12cm and 24 cm.