Find the sum of the lengths of the bases of a trapezium whose area is `4.2\ m^2` and whose height is 280 cm.

Find the sum of the lengths of the bases of a trapezium whose area is 4.2m^(2) and whose height is 280cm.

Find the sum of the lengths of the bases of a trapezium whose altitude is 11cm and whose area is 0. 55\ m^2dot

Find the sum of the lengths of the bases of a trapezium whose altitude is 11cm and whose area is 0.55m^(2).

Find the base of parallelogram whose are is 400 cm^2 and whose height is 8 cm.

Find the length of the base of a triangle whose area is 392" sq.cm and height is 49cm

Find the base of a triangle whose area is 220cm^2 and height is 11cm.

Find the base of a triangle whose area is 90cm^(2) and height 12 cm.

Find the base of a triangle whose area is 160cm^2 and height is 10cm.

Find the altitude of a trapezium whose area is 65\ c m^2 and whose bases are 13cm and 26cm.