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lilavasa [31]
3 years ago
14

9) Which figure has 90° rotational symmetry?

Mathematics
1 answer:
IceJOKER [234]3 years ago
6 0
The answer is B. Thank you
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Please help! Name an angle adjacent and congruent to angle AOC ( diagram in picture)
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Answer:

Angle DOC

Step-by-step explanation:

Since angle AOC and angle DOC are ajacent angles that form a straight line, they are supplementary to each other.

By the definition of supplementary angles, you can determine that angle AOC + angle DOC = 180.

Also notice that angle DOC is a right angle (90 degrees), so you can also determine that angle AOC is also a right angle since they are supplementary.

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The coordinates for point R will be (-1, -6). This is because a rectangle has opposite sides and as you plot your rectangle with these defines points along with that of R, you will be able to successfully achieve a perfect rectangle.

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