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A rectangle is cut in half to create two squares that each has an area of 25. What is the perimeter of the original rectangle?
Let me see.
Square A
Let s = side of square
Area = s^2
25 = s^2
sqrt{25} = sqrt{s^2}
5 = s
The original rectangle is cut in half. This tells me that Square B also has a side that is 5.
Perimeter = 2(5 + 5) + 2(5)
P = 2(10) + 10
P = 20 + 10
P = 30
You say?
Let me see.
Square A
Let s = side of square
Area = s^2
25 = s^2
sqrt{25} = sqrt{s^2}
5 = s
The original rectangle is cut in half. This tells me that Square B also has a side that is 5.
Perimeter = 2(5 + 5) + 2(5)
P = 2(10) + 10
P = 20 + 10
P = 30
You say?