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Ivan
2 years ago
6

Triangle HIJ has coordinates H(-3,5), (8,2), and J(-3,-5). Find

Mathematics
1 answer:
Vlad1618 [11]2 years ago
5 0

Answer:

H (x= -3 , y=5)

I (x=8 , y=2)

J (x= -3 , y= -5)

D is the distance between the 2 points so just plug in the x and y cords of each of the corresponding points

so for (HI)

you plug in 2 on the red x

and 8 on the red y

then -3 in the blue x

and 5 in the blue y

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A square has an area of 100 square meters.<br> What is the perimeter of the square?
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Answer:

40 square meters

Step-by-step explanation:

Perimeter means to add up all sides.

area means one side times one side

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10 + 10 + 10 + 10 = 40

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Answer:

Option (B). Perimeter of the quadrilateral ABCD= 14.6 units

Step-by-step explanation:

From the figure attached,

Coordinates of the vertices are A(3, 5), B(1, 3), C(3, -1), D(5, 3).

Length of AB = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}

                      = \sqrt{(3-1)^2+(5-3)^2}

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Length of AD = \sqrt{(3-5)^2+(5-3)^2}

                      = \sqrt{8}

                      = 2.83 units

Length of BC = \sqrt{(1-3)^2+(3+1)^2}

                      = \sqrt{20}

                      = 4.47 units

Length of DC = \sqrt{(5-3)^2+(3+1)^2}

                       = \sqrt{20}

                       = 4.47 units

Perimeter of the quadrilateral = AB + AD + DC + BC

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                                                = 14.6 units  

Option (B) is the answer.

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