The cosine of an angle is always the ratio of the (adjacent side/ hypotenuse).
mid segment in a triangle and how to compare it to a median
Created where a transversal crosses two (usually parallel) lines. Each pair of interior angles are inside the parallel lines, and on the same side of the transversal.
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A median of a triangle is a line from a vertex of the triangle to the midpoint of the side
A triangle where one of its interior angles is a right angle (90 degrees).
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two nonadjacent angles made by the crossing of two lines by athird line, one angle being interior, the other exterior, and bothbeing on the same side of the third line
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The pairs of angles on opposite sides of the transversal but inside the two lines are called Alternate Interior Angles.
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a line intersecting two or more other lines
Exterior Angles are created where a transversal crosses two (usually parallel) lines. Each pair of these angles are outside the parallel lines, and on the same side of the transversal.
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