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3. A wall in Miss Wong's dining room is misror with an area of 12 square feet. Miss hangs a rectangular mirro What is the area of the wall not covered by the mirror? a. What could be the length and width of the mirror? How do you know?

Ask by Riley Hart. in the United States
Feb 27,2025

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The mirror can be any rectangle where the length multiplied by the width equals 12 square feet. For example, a mirror that is 3 feet long and 4 feet wide, since 3 × 4 = 12.

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Mind Expander

To find the area of the wall not covered by the mirror, we need to subtract the area of the mirror from the total wall area. If the mirror is rectangular and has an area of 12 square feet, any combination of length and width that multiplies to 12 will work. For example, the mirror could be 3 feet wide and 4 feet tall, or even 2 feet by 6 feet. These combinations are derived from simple multiplication, showcasing the flexibility in dimensions that can still satisfy the area requirement! Once you determine the mirror's dimensions, calculating the remaining wall space is a breeze. Just use the formula: area of the wall (total space) minus the area of the mirror = area left. If the wall is, say, 24 square feet, you'd have 24 - 12 = 12 square feet of wall left uncovered. This simple subtraction helps in visualizing how the mirror interacts with the space around it!

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