Question
A rotation turns a figure about a fixed point, called the ______.
- point of rotation
- centre of rotation
- centre of transformation
- point of symmetry
Hint:
Use definition of transformation by rotation
The correct answer is: centre of rotation
A rotation is a transformation that rotate every point of a figure through a specified angle and direction about a fixed point. The fixed point is called the centre of rotation.
Related Questions to study
A reflection uses _______ to create a mirror image of the original figure.
A reflection uses _______ to create a mirror image of the original figure.
A translation moves every point of a figure
A translation moves every point of a figure
Consider a transformation △ 𝑋𝑌𝑍 →△ 𝐵𝐶𝐷. Understand the order and answer the following questions.
i) What is △ 𝐵𝐶𝐷 called?
ii) What is the relation between the vertices 𝑋, 𝑌, 𝑍 and 𝐵, 𝐶, 𝐷 ?
Consider a transformation △ 𝑋𝑌𝑍 →△ 𝐵𝐶𝐷. Understand the order and answer the following questions.
i) What is △ 𝐵𝐶𝐷 called?
ii) What is the relation between the vertices 𝑋, 𝑌, 𝑍 and 𝐵, 𝐶, 𝐷 ?
Solve: x + 2y = 16 , 3x - 4y + 12 = 0 by using substitution method.
Solve: x + 2y = 16 , 3x - 4y + 12 = 0 by using substitution method.
Solve: and
Solve: and
Solve the pair of linear equations, Also find p if p = 2x + 3
Solve the pair of linear equations, Also find p if p = 2x + 3
Solve: by using substitution method.
Solve: by using substitution method.
Solve: 3x + y = 8; 5x + y = 10 by using elimination method.
Solve: 3x + y = 8; 5x + y = 10 by using elimination method.
Solve and by using elimination method.
Solve and by using elimination method.
Solve by using elimination method:
Solve by using elimination method:
Solve by using elimination method. .
Solve by using elimination method. .
Solve the following equation by balancing on both sides: b) 6n+7= 3n+25
Solve the following equation by balancing on both sides: b) 6n+7= 3n+25
Solve the following equation by balancing on both sides: a) 5m+9 = 4m + 23
Solve the following equation by balancing on both sides: a) 5m+9 = 4m + 23
Solve:
Solve:
Which of the following could be the x-coordinate of a solution to the system of equations above?
Note:
If we had to find the y-coordinate of the system of equations, then we put this value of x in the equation to get the value of y. Here, we got a quadratic equation of x, which did not have any term containing x, so it was easier to solve. If the quadratic equation was of the form , then we would use the quadratic formula to solve the equation.
Which of the following could be the x-coordinate of a solution to the system of equations above?
Note:
If we had to find the y-coordinate of the system of equations, then we put this value of x in the equation to get the value of y. Here, we got a quadratic equation of x, which did not have any term containing x, so it was easier to solve. If the quadratic equation was of the form , then we would use the quadratic formula to solve the equation.