Which expression gives the base area of a rectangular prism with length l and width w?

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Prepare for the Praxis Middle School Mathematics Exam with quizzes. Study with flashcards and multiple choice questions. Each question provides hints and detailed explanations. Ensure success on your test!

Multiple Choice

Which expression gives the base area of a rectangular prism with length l and width w?

Explanation:
The base area of a rectangular prism comes from the rectangle at the bottom, which has side lengths equal to the length and the width. The area of a rectangle is found by multiplying its two side lengths, so the base area is l × w. That’s why the expression l w is the one that describes the base. The other expressions involve height, which is not part of the base; they would describe areas of the side faces rather than the bottom.

The base area of a rectangular prism comes from the rectangle at the bottom, which has side lengths equal to the length and the width. The area of a rectangle is found by multiplying its two side lengths, so the base area is l × w. That’s why the expression l w is the one that describes the base.

The other expressions involve height, which is not part of the base; they would describe areas of the side faces rather than the bottom.

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