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Eggs in a carton is an example of collinear points because the eggs in the row are equal and right next to each other, along with being on the same row/line.

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An example of finding the perimeter is finding the floor area, perhaps to change the floor itself. Finding out the length and width of the floor will help figure out the size and proper material to replace the floor.

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A train track is a good example of having the use of parallel lines because the two lines that help the train travel are equal and the exact same, creating parallel lines.

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A Dorito chip is a perfect example of a triangle because it has 3 sides and three angles, creating a triangle.

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This coin is a good example of a circle because it has no corner or edge, creating a circular shape.

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A chess board is a good example of a square because all the sides (length and width) are exact, along with four corners which create a square.

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A pencil box is a good example of a rectangle because the lengths are long and the widths are short along with four corners, creating a rectangle.

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A ferris wheel is an example of a congruent angle because the spokes are the exact size and shape, which helps the balance of the Ferris wheel

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This sign is the perfect example of vertical angel because it is seen in the picture that the two signs intersect in an X shape, which is a vertical angle.

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A door is an example of a right angle because the side and bottom side of the door create a right angle. (L shaped.)

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A hand fan is an example of an obtuse angel because the bottom corner along with the two sides of the fan create an obtuse angle.

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A pizza slice is an example of an acute angle because from the corner of the pizza to the two side of the crusts, it creates an acute angle.

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A house is an example of Postulate 1-3 because the two walls represents planes that intersect.

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Two roads or paths are an example of postulate 1-2 because it meets at one point to make crossroads.

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A clock is an example of a line because there are lines attached to the clock that remind us of the time.

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The edge of a table is an example of a line because the edges have two corners connect to one line.

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A paper is an example of a plane because it is a flat surface, wide and long.

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A pencil is a great example of a point because of the sharpened end of the pencil.