Answer:
10 units
Explanation:
recall that the area of a rhombus is half the product of the length of its diagonals. i.e
Area of Rhombus = (1/2) (length of diagonal 1) x (length of diagonal 2)
in our case, we are given:
Area of Rhombus = 65 units²
length of diagonal 1 = 13 units.
Hence substituting the above values into the formula:
Area of Rhombus = (1/2) (length of diagonal 1) x (length of diagonal 2)
65 = (1/2) (13) x (Length of diagonal 2)
Length of diagonal 2 = (65 x 2 ) / 13 = 10 units