Relationship in Triangle Vocabulary

An angle formed by extending one of the sides of a triangle.

• Interior Angle

• Exterior Angle

• Remote Interior Angle

• Extended Angle

Two interior angles that are not adjacent (not touching) to the exterior angle of a triangle.

• Interior angles

• Exterior angles

• Remote interior angles

• Adjacent Angle

If two pair of corresponding angles in a pair of triangles are congruent, then the triangles are similar.

• Exterior Angle Theorem

• Angle Angle Criterion(AA)

• Angle, Side, Angle Theorem (ASA)

• Side, Side, Side Theorem (SSS)

Two triangles that have proportional sides and congruent angles.

• Obtuse Triangles

• Scalene Triangles

• Congruent Triangles

• Similar Triangles

• Midsegment
• Perpendicular Bisector
• Median
• None

• Median
• Altitude
• Midsegment
• None

A charter plane travels from Barrow, Alaska, to Fairbanks. From Fairbanks, it flies to Nome,
and then back to its starting point in Barrow.
Which of the three legs of the trip is
the longest?

• Fairbanks to Nome

• Nome to Barrow

• Barrow to Fairbanks

• Anchorage to Fairbanks

An exterior angle of a triangle is equal to the sum of the opposite interior angles.

• Exterior Angle Theorem

• Angle Angle Criteria (AA)

• Angle, Side, Angle Theorem (ASA)

• SIde, Side, Side Theorem (SSS)

Triangle that has two congruent sides

• Isosceles Triangle

• Scalene Triangle

• Acute Triangle

• Obtuse Triangle