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A muralist is painting the side wall of a building. The wall is shaped like a rectangle that is 6060 feet long and has a diagonal length of 6868 feet. If a gallon of paint can cover 800800 square feet, how many gallons will the muralist use?\newline____ gallons\newline

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Q. A muralist is painting the side wall of a building. The wall is shaped like a rectangle that is 6060 feet long and has a diagonal length of 6868 feet. If a gallon of paint can cover 800800 square feet, how many gallons will the muralist use?\newline____ gallons\newline
  1. Calculate Wall Height: Calculate the height of the wall using the Pythagorean theorem, given the diagonal and length of the rectangle.\newlineheight2+length2=diagonal2height^2 + length^2 = diagonal^2\newlineheight2+602=682height^2 + 60^2 = 68^2\newlineheight2+3600=4624height^2 + 3600 = 4624\newlineheight2=46243600height^2 = 4624 - 3600\newlineheight2=1024height^2 = 1024\newlineheight=1024height = \sqrt{1024}\newlineheight=32height = 32 feet
  2. Calculate Wall Area: Calculate the area of the wall using the length and height.\newlineArea = length×height\text{length} \times \text{height}\newlineArea = 60feet×32feet60 \, \text{feet} \times 32 \, \text{feet}\newlineArea = 1920square feet1920 \, \text{square feet}
  3. Determine Paint Gallons: Determine the number of gallons of paint needed using the area and coverage per gallon.\newlineNumber of gallons = AreaCoverage per gallon\frac{\text{Area}}{\text{Coverage per gallon}}\newlineNumber of gallons = 1920 square feet800 square feet per gallon\frac{1920 \text{ square feet}}{800 \text{ square feet per gallon}}\newlineNumber of gallons = 2.42.4

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