A dining room table is 7 feet long and 4 feet wide. How far is it from one corner to diagonally opposite corner of the table? Round to the nearest tenth

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)