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aalejah25
02.07.2019 •
Mathematics
Is this correct? (checking answers)
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Ответ:
Ответ:
When it forms a square and a rectangle, Max area = 27 + 36 = 63 m^2
When it forms a square or a rectangle, min area = 27 m^2
Step-by-step explanation:
Since the whole length of the wire. =24 m
To form a square from it, all the four sides of the square should be the same, i.e
Each side of the square = 24/4
Each side of the square, l = 6 m
The area of the square = l^2
Area of the square = 6^2 = 36 m^2
For the rectangle, if the length = 3 * width
There are two equal lengths and two equal widths in a rectangle
2l = 3(2w)
Since the length is described to be 3 times the width, only 18 and 6 are three times each other that can be added to make 24.
I.e. 2l = 18, 2w = 6
l = 9 m, w = 3 m
The area of the rectangle = l*w
Area of the rectangle = 9*3 = 27 m^2
When it forms a square and a rectangle, Max area = 27 + 36 = 63 m^2
When it forms a square or a rectangle, min area = 27 m^2