SOLUTION: the length of the hall is 18metre and the width is 12 metre. the sum of the area of the floor and the flat roof is equal to the sum of the areas of the four walls.find the height o
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-> SOLUTION: the length of the hall is 18metre and the width is 12 metre. the sum of the area of the floor and the flat roof is equal to the sum of the areas of the four walls.find the height o
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Question 550999: the length of the hall is 18metre and the width is 12 metre. the sum of the area of the floor and the flat roof is equal to the sum of the areas of the four walls.find the height of the wall?
You can put this solution on YOUR website! the length of the hall is 18 metre and the width is 12 metre.
the sum of the area of the floor and the flat roof is equal to the sum of the areas of the four walls. find the height of the wall?
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Let h = the height of the wall
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Find the sum of the areas of the floor and the roof: 2(18*12) = 432 sq/ft
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two walls 18' long + two walls 12' long = 432
2(18h) + 2(12h) = 432
simplify, divide by 2
18h + 12h = 216
30h = 216
h =
h = 7.2 meters is the height of the wall
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:
Check this
2(18*7.2) + 2(12*7.2) = 432
