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1 answer:
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Answer:
Option B is correct.
The coordinate of A' is (-2 , -1)
Explanation:
The coordinates of ABCD are A = (-1,2) , B(1,1) , C =(1,-1) and D(-2,-2).
Rotation means moving the shape around a fixed point clockwise or anticlockwise, and by a certain number of degrees.
Rule for 90° counterclockwise rotation about the origin:
or we can say that switch x and y in the coordinates and make y value opposite.
Then, the coordinate of A' :
Therefore, the coordinate of A' in the quadrilateral A'B'C'D' is, (-2 ,-1)
Answer:
The distance between A and B is <em>l(AB) = </em>13 units
Step-by-step explanation:
Given:
let,
A ≡ ( x1, y1 ) ≡ ( 0, 12 )
B ≡ ( x2, y2 ) ≡ ( 5, 0 )
To Find:
Length AB = ?
Solution:
Distance Formula for the distance between the two points ( x1, y1 ) and ( x2, y2 ) we have,
On substituting the above values we will get,
Therefore the distance between A and B is <em>l(AB) = </em>13 units