Answer: so you do length times width times height and then you divide by two
Step-by-step explanation:
There would be four rows of 5. If he added one more row of desks he would have 25 desks.
Each line is a desk
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That's the diagram..
(12×3) + 3(0.67×7) = 50.07inches²
≈ 50inches²
hope this helps
make it the brainliest if it's correct....