Given:
Volume of a cylinder (V) = 1078 cm3
and radius of the base (r) = 7cm
To find:
Height of a cylinder (h) = ?
By formula,
Volume of a cylinder (V) = πr2h
Or, 1078 = (22/7) x 72 x h
Or, h = 1078 / 154
Or, h = 7 cm
Hence the required height of the cylinder is 7 cm.