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An angle that is above 90 degrees

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-Michael
Acute angles are smaller than a right angle which is less than 90° Anything above 0 and below 90 is an acute angle.

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In geometry, an edge is a particular type of line segment joining two vertices in a polygon, polyhedron, or higher-dimensional polytope. In a polygon, an edge is a line segment on the boundary, and is often called a side. In a polyhedron or more generally a polytope, an edge is a line segment where two faces meet.

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a point is an indicator to a certen spot

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An angle that is exactly 90 degrees. Quarter turn or a corner.

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Perpendicular lines are two lines that intersect at 90° angles.

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Perpendicular lines are two lines that intersect at 90° angles.

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Two pairs of angles inside and outside the two intersection lines.

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Straight Angle
A straight angle is an angle of 180° or a straight line.

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When the sum of two angles is equal to 90 degrees, they are called complementary angles. For example, 30 degrees and 60 degrees are complementary angles.

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In solid geometry, a face is a flat surface that forms part of the boundary of a solid object; a three-dimensional solid bounded exclusively by faces is a polyhedron

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Icosahedron definition: A polyhedron with 20 faces.
An icosahedron is a solid figure with twenty faces,  especially equilateral triangular ones.

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A three-dimensional shape having eight plane faces, especially a regular solid figure with eight equal triangular faces.

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A vertice also known as a vertex is where two or more lines, edges or curves meet to form an angle.

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Corresponding angles are angles that are in the same position relative to lines intersected by a transversal. When a transversal intersects two lines, the two lines are parallel if and only if corresponding angles are congruent.

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Supplementary Angles are two angles that add together to equal 180 degrees.
- Faith

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A 3 dimensional figure made up of 6 squares so all sides have the same dimensions and the whole figure is symmetrical

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A straight angle is an angle of 180° or a straight line.

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a point is a dot to indicate the mark

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Corresponding angles are angles that are in the same position relative to lines intersected by a transversal. When a transversal intersects two lines, the two lines are parallel if and only if corresponding angles are congruent.

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A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry there are 3 types of triangles; equilateral,  isosceles and scalene. All the angles add up to 180°. There are also Right triangles, a type of triangle that has one right angle.

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In Euclidean geometry, an angle is the figure formed by two rays, called the sides of the angle

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Definition:
Angles that are opposite angles from each other when two lines cross
Image:  Angles A and B are also opposite angles

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a solid having four plane triangular faces; a triangular pyramid.-HJ

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a set of angle pairs formed when parallel lines are intersected by a transversal.

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is any polyhedron with twelve flat faces. The most familiar dodecahedron is the regular with regular dodecahedron pentagons as faces, which is a Platonic solid.

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Example: 1. Parallel Lines

Lines that are in the same plane and do not intersect.

Two lines running next to each other that never touch.