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25-10-2022
Mathematics

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Triangle A is rotated 90° about the origin. Which triangle shows the image?

Triangle A is rotated 90 about the origin Which triangle shows the image class=

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AzaryahZ109329 AzaryahZ109329

25-10-2022

Rotation 90° about the origin.

First, choose a point from triangle A.

For example: (-2,2)

For any point (x,y) rotated 90° =(-y,x)

So:

(-2,2) becames = (-2,-2)

Triangle D

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