Answer:
2.5 cm
Explanation:
Put the given values into the area formula, and solve for height.
A = 1/2bh
5 cm² = 1/2(4 cm)h . . . . . . . . . . . . . fill in the values
(5 cm²)/(2 cm) = h = 2.5 cm . . . . . divide by the coefficient of h
The height is 2.5 cm.