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Bogdan [553]
3 years ago
10

Pentagon ABCDE is shown on the coordinate plane below.

Mathematics
2 answers:
ANTONII [103]3 years ago
5 0
Point D will pass from (1,-2) to (-1,2)

The second choice is the correct one.
Flura [38]3 years ago
3 0

Answer:

Option 2 is correct. The ordered pair of D'(-1,2)

Step-by-step explanation:

If pentagon ABCDE is rotated 180° around origin to create pentagon A'B'C'D'E'

We need to find the ordered pair of point D'

We will use the formula of rotation of coordinate about origin.

x'=x\cos\theta+y\sin\theta

y'=-x\sin\theta+y\cos\theta

We need to find the coordinate of D' which is corresponding of D.

Coordinate of D: (1,-2)

\text{Where, }x=1, y=-2\text{ and }\theta=180^{\circ}

Now we find D':(x',y')

x'=1\times \cos 180^{\circ}-2\times \sin 180^{\circ}=-1

y'=-1\times \sin 180^{\circ}-2\times \cos 180^{\circ}=2

D' (-1,2)

Thus, The ordered pair of D'(-1,2)

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