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Karolina [17]
3 years ago
15

A rectangle in the xy-coordinate plane is formed by the points (1,−4), (1,6), (3,−4), and (3,6). What is the perimeter of this r

ectangle?
Mathematics
1 answer:
Airida [17]3 years ago
7 0

Answer:

Perimeter of the rectangle=20+2\sqrt{104}

Step-by-step explanation:

The perimeter of the rectangle with the given coordinates is the sum of its all four sides:

Let the points be A(1,-4), B(1,6), C(3,-4) and D(3,6)

Finding the sides of the rectangle using the Distance formula:

AB=

               \sqrt{(1-1)^2+(6-(-4))^2} \\\\=\sqrt{0+10^2} \\\\=\sqrt{100}\\\\ =10

BC

            =\sqrt{(3-1)^2+(-4-6)^2} \\\\=\sqrt{2^2+(-10)^2}\\\\ =\sqrt{4+100} \\\\=\sqrt{104}

CD=

             \sqrt{(3-3)^2+(6-(-4))^2} \\\\=\sqrt{0+10^2} \\\\=\sqrt{100} \\\\=10

AD=

            \sqrt{(3-1)^2+(6-(-4))^2} \\\\=\sqrt{2^2+10^2} \\\\=\sqrt{4+100}\\\\ =\sqrt{104}

 Perimeter of the rectangle=AB+BC+CD+AD

                                    =10+\sqrt{104}+ 10+\sqrt{104}

Perimeter of the rectangle=20+2\sqrt{104}

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Item 15
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