Best Answer : put two pentagons one on top of the other and rotate them counting the number of times they match ( to find the rotation symmetry ) , draw a circle and mark its center then draw a pentagon whose every corner touches the circle and see if drawing a diameter that goes through the center leaves the same figure on each side of the divided ...
An Ordered Pair. When we write down points on our coordinate plane, we call it an ordered pair because we have two numbers. We need the two numbers to tell us where the point is on the coordinate plane. The first number tells us where it is on the x-axis, and the second number tells us where it is on the y-axis.
The Coordinates. The position of any point on the Cartesian plane is described by using two numbers: (x, y). The first number, x, is the horizontal position of the point from the origin. It is called the x-coordinate.The second number, y, is the vertical position of the point from the origin.It is called the y-coordinate.Since a specific order is used to represent the coordinates, they are called ordered pairs.artesian plane, x-axis, y-axis, origin, coordinates, point, x-coordinate, y-coordinate, ordered pair. | Home Page | Order Maths Software | About the Series | Maths Software Tutorials |. | Year 7 Maths Software | Year 8 Maths Software | Year 9 Maths Software | Year 10 Maths Software |.