Answer:
18 units
Step-by-step explanation:
Area of rhombus is given by 1/2(product of length of diagonals).
Given
Area of rhombus = 90 sq. units
length of one diagonal = 10 units
let the length of other diagonal be x units
Substituing the value given above in formula for area of rhombus we have
90 = 1/2(10*x)
=> 90*2 = 10x
=> 180 = 10x
=> x = 180/10 = 18
Thus, length of other diagonal is 18 units.