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anonymous
 one year ago
Jackson wants to paint a 3foot border around the edge of the floor in his room. He drew this diagram to show how it should look.
What area of the floor will remain unpainted
i will draw the square
anonymous
 one year ago
Jackson wants to paint a 3foot border around the edge of the floor in his room. He drew this diagram to show how it should look. What area of the floor will remain unpainted i will draw the square

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0dw:1434142922283:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1You mean a 3ft border all around inside the room like this? dw:1434143162361:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how'd you no exept that the border is wite

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1The 3ft border is going to be painted. The crosshatched area inside will not be painted. The question is what is the area of the crosshatched area inside.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1The inner area that will not be painted is in the shape of a rectangle. Do you know how to find the area of a rectangle?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0multiply the top and sides

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Good. Multiply the length by the width.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1We need the length and width of the inner rectangle. Let's see how we can find them.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1No. 140 ft^2 is the area of the large outside rectangle. You calculated the area correctly, but it's the wrong rectangle. We need the area of the smaller inner rectangle. We need the length called L in the figure below. dw:1434143597247:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Notice length L of the smaller rectangle. Its length is the large length, 14 ft, with 3 ft taken away from each side. What is the length L?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1No. See figure below. dw:1434143969274:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1What is 14  3 ?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Take the length of the outer rectangle, 14 ft, and subtract 3 ft twice. Then take the width of the outer rectangle, 10 ft, and subtract 3 ft twice. That will give you the length and width of the inner rectangle. Then multiply that length and width of the inner rectangle to find its area.
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