To determine whether or not they have a certain disease, 150 people are to have their blood tested. However, rather than testing
1 answer:
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Answer:
The 2nd picture is right answer as it has coordinates as A'(0, 1), B'(1, 0), C'(3, -2), and D'(2, -3). The corresponding answer picture is attached below.
Step-by-step explanation:
As we know that when a figure is rotated 90° counterclockwise about the origin, the side of the points of the figure are switched, and the sign of the y-coordinated is reversed.
Thus, the rule to rotate the point of any figure is rotated 90° counterclockwise about the origin is:
→
Considering the quadrilateral ABCD in the first figure having the vertices A(-1, 0), B(0, -1), C(-2, -3), and D(-3 , -2) respectively.
So, after quadrilateral ABCD is rotated counterclockwise 90° about the origin,
- A (-1, 0)
A' → (-y,x) = (0,1)
- B(0, -1)
B' → (-y,x) = (1, 0)
- C(-2, -3)
C' → (-y,x) = (3, -2)
- D(-3, -2)
D' → (-y,x) = (2, -3)
So, the coordinates of a quadrilateral ABCD after a rotation of 90° about the origin would be A'(0, 1), B'(1, 0), C'(3, -2), and D'(2, -3) respectively.
Therefore, the 2nd picture is right answer as it has coordinates as A'(0, 1), B'(1, 0), C'(3, -2), and D'(2, -3). The corresponding answer picture is attached below.
Keywords: 90° rotation about the origin, transformation, quadrilateral
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Answer:
Yes. In a rectangle of 2 row squares of √11 legs. We still have four right angles and two pair of parallel sides.
Step-by-step explanation:
To make a rectangle out of a 2 rows of 11 u² square, is to draw 2 squares with √11 legs. Joining them we can clearly see a new rectangle with (2√11) height and √11 width. Four right angles, two parallel legs. Exactly what makes a rectangle.
