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This is an example of postulate 1-3 because the 2 planes are intersecting to create a line.

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This is an example of postulate 1-2 because both the lines intersect at one point.

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This is an example of congruent angles because the 2 angles are congruent to eachother.

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This is an example of adjacent angles because they share a vertex and add up to 180 degrees

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This sign is an example of vertical angles because they are opposite angles that intersect in the middle.

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This egg carton is an example of collinear because they show the 4 points are on the same line.

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Lined paper is an example of coplanar points because the lines/angles are on the plane/paper.

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A tv is an example of a plane because it is a flat 2d surface that extends.

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A ruler is an example of a straight angle because the angle is 180 degrees.

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Windows are an example of right angles because the corners of the windows make 90 degree angles.

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A fan is an example of an obtuse angle because the angle is bigger than a 90 degree angle.

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Tongs are an example of an acute angle because the angle is less than a 90 degree angle.

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Cutting a pie is an example of angle bisector because the pie is divided into 2 equal parts.

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Floor tiling is an example of perimeter because you are able to add the length plus width to find it.

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These coasters are a square because all sides are equal and they have 4 vertexs.

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This is a rectangle because 2 sides are equal to each other and the other 2 are equal to each other and has 4 vertexs

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This is a triangle because it has 3 sides.

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This is a circle because it is round with no corners or edges.