The area of parallelogram ABCD is `36 cm^(2)` . Calculate the height of parallelogram ABEF if AB = 4.2 cm

The base of a parallelogram is ( 5x + 4 ) . Find its height, if the area is 25x^(2) - 16 .

Sum of squares of adjacent sides of a paralleogram is 130 cm^(2) and length of one of its diagonal is 14 cm. Find length of the other diagonal. (i) square ABCD is a parallelogram (ii) AB^(2) + BC^(2) = 130 cm^(2) (iii) AC = 14 cm