Answer:
Step-by-step explanation:
I believe that this is the answer.
Mr. Ross is building a square ball room with a square dance floor surround by carpet to the wall. The room has a side length of
1 answer:
Answer:
He will need (x+2)(x-2) units squared.
Step-by-step explanation:
Alright, so to solve this it is necessary to find the area of the room and subtract the area of the dance floor from it.
Fortunately, squares are a special case where we only need to... well square the side.
Therefore:
Great. Difference of two squares.
Therefore:
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First, you plot the coordinates to visualize the problem clearly. As you can see in the picture, the longest sides could either be one of those marked in red. This could be initially determined when you use visual estimation. We measure this using the distance formula: d = √[(x2-x1)^2 + (y2-y1)^2)]
Between coordinates (0,3) and (3,6)
d = √[(3-0)^2 + (6-3)^2)]
d= 4.24 units
Between coordinates (2,1) and (5,4)
d = √[(5-2)^2 + (4-1)^2)]
d= 4.24 units
They are of equal length. Both are the longest sides which measures 4.24 units.
Between coordinates (0,3) and (3,6)
d = √[(3-0)^2 + (6-3)^2)]
d= 4.24 units
Between coordinates (2,1) and (5,4)
d = √[(5-2)^2 + (4-1)^2)]
d= 4.24 units
They are of equal length. Both are the longest sides which measures 4.24 units.