That depends upon the centre of rotation - it can be any point at all in the plane; eg:
If the centre is (-1, -2), then after the rotation (-1, -2) → (-1, -2)
If the centre is (-0, 0), then after the rotation: (-1, -2) → (2, -1)
If the centre is (1, 2), then after the rotation: (-1, -2) → (5, 0)
etc.
90 = 9e+1
With a scale factor of 1, the image is exactly the same size as the original object.
The 4 classifications are:- 1 Acute angle which is greater than 0 but less than 90 degrees 2 Right angle which is 90 degrees 3 Obtuse angle which is greater than 90 but less than 180 degrees 4 Reflex angle which is greater than 180 but less than 360 degrees A full rotation is 360 degrees
0.25 X 360 = 90 To mulyply decimals by long multiplication. 360 x 25 ( NB we have temporarily dropped the decimal point). 7200 (360 x 20) 1800 (360 x 5) 9000 ===== We note that there were only 2 decimals places in the multiplicands. So the answer has 2 decimal places. Hence 9000 becomes , 90,00 or just plain '90'. Another way is to note that ' 0.25 = 1/4' So again multiply 360 x 1/4 Multiplication of fractions. 360/1 x 1/4 = Cancel down by '4' 90/1 X 1/1 = 90/1 = 90 Another 'Short Circuit' method. is to note that 9 x 4 = 36 Hence 90 x 4 = 360 So 360/ 4 - 360 x 1/4 = 90 . Careful with this last method, 'Short Circuits; can be dangerous, mabd so you my end up with the wrong answer.
The square root of 1800 is 90
The answer will depend on whether the rotation is clockwise or counterclockwise.
The answer depends on the centre of rotation. A rotation cannot be described without specifying the centre of rotation.
1
It is (-1, 6).
(-1, -4) rotated 90 degrees anticlockwise
To find the image of the point (1, -6) after a 180-degree counterclockwise rotation about the origin, you can use the rotation transformation. A 180-degree rotation changes the coordinates (x, y) to (-x, -y). Therefore, the image of the point (1, -6) is (-1, 6).
The coords are (6, 1).
It is (6, 1).
It is (-6, -1).
It is 1/4 of a turn
90 degrees is a 1/4 of a full rotation of 360 degrees
A 90-degree counterclockwise rotation involves turning an object or point 90 degrees to the left around a specified pivot point. For example, if you imagine a point on a Cartesian coordinate system, moving it 90 degrees counterclockwise would shift its position from, say, (1, 0) to (0, 1). This transformation effectively swaps the x and y coordinates and changes the sign of the new x-coordinate.