Red Seal Carpenter Practice Exam

What are the outside diagonal measurements of a rectangular basement with 200 mm (8") concrete walls, whose length is 30 m (98' 5") and width is 20 m (65' 7Γö¼Γò£")?

1. 35.779 m

2. 36.333 m

3. 36.056 m

4. 36.555 m

The correct answer is: 36.056 m

The outside diagonal measurements of a rectangular basement can be calculated using the Pythagorean theorem d = sqrt(l^2 + w^2), where d is the diagonal measurement, l is the length, and w is the width. The incorrect options are all calculated using the formula incorrectly, using either the length or the width as the hypotenuse instead of the diagonal measurement. Option A uses 30 m as the hypotenuse, option B uses 20 m, and option D uses 50 m (the diagonal measurement of a 30 m by 20 m rectangle). These calculations will give incorrect results. Option C correctly uses the diagonal measurement as the hypotenuse and shows the correct calculation for the outside diagonal measurement.