Answer:
6mm
Step-by-step explanation:
Base of pallelogram (b)= 13mm
Area of parallelogram (A) = 78 mm²
using the formula of the area of parallelogram and substituting the value of its base we get,
Area = height × base
78 = h × 13
dividing both sides by 13,
78/13 = h× 13/13
therefore, height of parallelogram = 6mm