If a rectangle has length 24 inches and width 18 inches, what is its perimeter in inches?

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Prepare for the Local 483 Apprenticeship Exam. Utilize flashcards and multiple-choice questions, with hints and explanations for each. Get exam-ready today!

Multiple Choice

If a rectangle has length 24 inches and width 18 inches, what is its perimeter in inches?

Explanation:
The perimeter of a rectangle comes from adding all four sides, which is two copies of the length plus two copies of the width. So use P = 2(l + w). With length 24 and width 18, l + w = 42, and P = 2 × 42 = 84 inches. This also matches adding the sides directly: 24 + 18 + 24 + 18 = 84. If a different number shows up, it usually means one of the four sides wasn’t counted twice, or one side wasn’t added, which is why those other values don’t fit. So the perimeter is 84 inches.

The perimeter of a rectangle comes from adding all four sides, which is two copies of the length plus two copies of the width. So use P = 2(l + w). With length 24 and width 18, l + w = 42, and P = 2 × 42 = 84 inches. This also matches adding the sides directly: 24 + 18 + 24 + 18 = 84. If a different number shows up, it usually means one of the four sides wasn’t counted twice, or one side wasn’t added, which is why those other values don’t fit. So the perimeter is 84 inches.

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