Answer:
6 cans.
Step-by-step explanation:
area of parallelogram: base * height
Here the base is 14 inch height is 9 inch
using the formula: 14 * 9 = 126 inch²
1 can covers 24 inch²
so he needs: 126/24 = 5.25
He needs 6 cans to paint 126 inch² of the wood.