jadahilbun01
06.10.2019 •
Mathematics
Which of these figures has rotational symmetry?
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Ответ:
Option B is the answer.
Step-by-step explanation:
The figure that has rotational symmetry is option B.
This is because, if you spin this figure around 180 degrees from the center, it's the same figure again.
To know if a figure has rotational symmetry, we can rotate the figure in question, up to 180 degrees around its center. If at any point the object appears exactly like it did before the rotation, then the object has rotational symmetry.
Ответ:
m = -2/3
Step-by-step explanation:
We can find the slope of the line from the given two points:
m = (y2-y1)/(x2-x1)
m = (1-7)/(10-1)
m = -6/9
m = -2/3