Coordinates

There are 53 NRICH Mathematical resources connected to Coordinates
Beelines
problem
Favourite

Beelines

Age
14 to 16
Challenge level
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Is there a relationship between the coordinates of the endpoints of a line and the number of grid squares it crosses?
Hidden Squares
problem
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Hidden squares

Age
11 to 14
Challenge level
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Can you find the squares hidden on these coordinate grids?
Parabella
problem
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Parabella

Age
16 to 18
Challenge level
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This is a beautiful result involving a parabola and parallels.

Ten Hidden Squares
problem
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Ten hidden squares

Age
7 to 14
Challenge level
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These points all mark the vertices (corners) of ten hidden squares. Can you find the 10 hidden squares?
Isosceles Triangles
problem
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Isosceles triangles

Age
11 to 14
Challenge level
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Draw some isosceles triangles with an area of $9$cm$^2$ and a vertex at (20,20). If all the vertices must have whole number coordinates, how many is it possible to draw?
A Cartesian Puzzle
problem
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A cartesian puzzle

Age
7 to 11
Challenge level
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Find the missing coordinates which will form these eight quadrilaterals. These coordinates themselves will then form a shape with rotational and line symmetry.
Square coordinates
problem
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Square coordinates

Age
11 to 14
Challenge level
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A tilted square is a square with no horizontal sides. Can you devise a general instruction for the construction of a square when you are given just one of its sides?

Cubestick
problem
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Cubestick

Age
16 to 18
Challenge level
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Stick some cubes together to make a cuboid. Find two of the angles by as many different methods as you can devise.
Coordinate Challenge
problem
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Coordinate challenge

Age
7 to 11
Challenge level
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Use the clues about the symmetrical properties of these letters to place them on the grid.
Route to infinity
problem
Favourite

Route to infinity

Age
11 to 14
Challenge level
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Can you describe this route to infinity? Where will the arrows take you next?