Answer:
d = +8.1 ft
Step-by-step explanation:
Use the Pythagorean Theorem here to find the length of the diagonal of the table top: d = sqrt[ (7 ft)^2 + (4 ft)^2 ].
This simplifies to d = +√(49 + 16) ft, or d = +√65 ft
Using a calculator to evaluate √65, we obtain d = +8.1 ft (to the nearest tenth)
