Hypotenuse

The cosine of an angle is always the ratio of the (adjacent side/ hypotenuse).

Midsegment

mid segment in a triangle and how to compare it to a median

Same-Side Interior Angles

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.

Example

Real Example

Median of a triangle

A median of a triangle is a line from a vertex of the triangle to the midpoint of the side

Right Triangle

A triangle where one of its interior angles is a right angle (90 degrees).

Example

Real Example

Corresponding Angles

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

Alternate Interior Angles

Real Example

The pairs of angles on opposite sides of the transversal but inside the two lines are called Alternate Interior Angles.

Example

Transversal

a line intersecting two or more other lines

Same-Side Exterior Angles

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.

Example

Real example