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Triangle- a flat shape in which 2 sides are congruent, (height) and the bottom side, (base) is different.

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Triangle- a flat shape in which 2 sides are congruent, (height) and the bottom side, (base) is different.

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These Buildings are two triangles stacked on top of each other with a certain apex/vertex.

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Square- a flat shape with 4 sides all congruent to each other.

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Square- a flat shape with 4 sides all congruent to each other.

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A chess board depicts small perfect squares, with the border being a square itself.

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Angle bisector- a ray that divides an angle into 2 congruent angles

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Angle bisector- a ray that divides an angle into 2 congruent angles

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A stingrays tail would be a strange yet accurate example of bisector. The image shows the tail splitting the stingray in two congruent sides of its' body.

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Complementary angle- an angle whose measurements add up to 90 degrees.

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Complementary angle- an angle whose measurements add up to 90 degrees.

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The edge of a field would represent a complementary angle in the sense that it makes a 90 degree angle.

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Congruent angle- an angle in which matches up with a congruent other.

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Congruent angle- an angle in which matches up with a congruent other.

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A play dome represents a congruent angle because it has several triangles in which are the same as each other.

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Adjacent angle- non-coplanar pair with a common side, common vertex, and NO common interior points.

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Adjacent angle- non-coplanar pair with a common side, common vertex, and NO common interior points.

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A ship steering wheel represents adjacent angles because it has many sides which are beside each other.

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Vertical angle- a non-adjacent pair whose sides are opposite rays.

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Vertical angle- a non-adjacent pair whose sides are opposite rays.

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This traffic sign is a great example because it shows 4 sides which are congruent to the side across from them.

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Acute angle- an angle whose measurement is less than 90

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Acute angle- an angle whose measurement is less than 90

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A slice of pizza would be a great example of an acute angle, because it gives almost an exact picture that its less than 90 degrees.

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Obtuse angle- an angle whose measure is bigger than 90 degrees.

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Obtuse angle- an angle whose measure is bigger than 90 degrees.

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This angle represents an obtuse angle because it is clear that the measurement is more than 90 degrees.

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Postulate 1-3- If 2 distinct planes intersect then they intersect in exactly 1 line .

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Postulate 1-3- If 2 distinct planes intersect then they intersect in exactly 1 line .

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This skyscraper shows a connection, (in this case), right down the center of the building which is connecting both sides.

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Right Angle- an angle whose measurement is exactly 90 degrees.

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Right Angle- an angle whose measurement is exactly 90 degrees.

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This birdhouse design shows how a right angle can be created with many useful materials. In this particular instance, the wood is being used to up the appearance of this bird house by creating a right angle.

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Postulate 1-2-if two distinct lines intersect then they intersect only at 1 pt.

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Postulate 1-2-if two distinct lines intersect then they intersect only at 1 pt.

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A wall clock shows a center point and the hands, numbers and dashes surrounding it.

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Line Segment-a line that has two endpoints and has a distinct ending spot.

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Line Segment-a line that has two endpoints and has a distinct ending spot.

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A tree could represent a segment because it ends at both ends of the tree.

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Line- Represented by a straight path that extends in two opposite directions.

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Line- Represented by a straight path that extends in two opposite directions.

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A power line shows a distinct observation of how a line is represented. The line is extending two opposite ways while staying taught.

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Collinear Points- points that belong in the same line 

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Collinear Points- points that belong in the same line 

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These ores would be considered collinear points across the top, because all of the points meet and form a straight line.

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Coplanar Points - points or lines that belong in the same plane.

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Coplanar Points - points or lines that belong in the same plane.

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An olympic swimming pool has many coplanar points within its shape. This includes the ropes going across the pool, the lines on the bottom of the pool etc. Basically everything within the pool is coplanar.

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Plane-flat surface that extends without end, has no thickness.

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Plane-flat surface that extends without end, has no thickness.

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An open field has no real density or thickness when it comes to math. This specific example shows a flat surface as well.

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Point-indicates location and has no  size 

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Point-indicates location and has no  size 

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Flowers represent a point in the sense that all the petals connect to a common vertex.