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3 years ago

Please help...

Mathematics

2 answers:

svp [43]3 years ago

5 0

8 so since it’s a square you square 8 together = 64

Dmitrij [34]3 years ago

3 0

Hey there!

First solve 2 x 4 . . .

2 x 4 = 8
This means each side of the shape is 8 inches.

To find area, multiply the two sides . . .

8 x 8 = 64 <---------

The area of the shape is 64 inches.

Hope this helps you.
Have a great day!

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Explanation:

The Coordinates of the square ABCD are A(-21,18), B(-12,18), C(-12,9), D(-21,9)

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Now, we shall determine the scale factor in the dilation if the coordinates A' and C'.

Since, the dilation is the enlargement of the image in the same shape but different size.

To determine the scale factor, let us divide A'C' by AC

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Also,

$\begin{aligned}A C &=\sqrt{(-12+21)^{2}+(9-18)^{2}} \\&=\sqrt{9^{2}+(-9)^{2}} \\&=\sqrt{81+81} \\&=\sqrt{162}\\&=9\sqrt{2} \end{aligned}$

Dividing A'C' by AC, we have,

$\frac{A'C'}{AC} =\frac{3\sqrt{2} }{9\sqrt{2}} =\frac{1}{3}$

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