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nikklg [1K]
3 years ago
7

A square classroom has a wall that is 21 feet long. What is the area of the classroom?

Mathematics
1 answer:
Rasek [7]3 years ago
6 0

<u>Answer and Step-by-Step explaination:</u>

Area =Length time Width

Area= 21*21

Area=441

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Answer:

  X''(2, -5), Y''(3, -3)

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You know that reflection in the x-axis changes the sign of the y-coordinate. Points that used to be above the axis are now below by the same amount, and vice versa.

Rotation counterclockwise by 270° is the same as clockwise rotation by 90°. That maps the coordinates like this:

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The attachment shows the original segment in red, the reflected segment in purple, and the rotated segment in blue. The equivalent line of reflection is shown as a dashed green line.

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Answer:

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