7th Grade Geometry Vocab

One triangle with specific side lengths

• Unique Triangle

• Ambiguous Triangle

• Non-existent Triangle

More than one triangle can be formed from angle measures that add up to $180\degree$  

• Ambiguous Triangle

• Non-existent Triangle

• Unique Triangle

Tags

CCSS.7.G.A.2

No triangle can be made with the given side lengths and/or the given angle measures are more than  $180\degree$  

• Non-existent Triangle

• Ambiguous Triangle

• Unique Triangle

Tags

CCSS.7.G.A.2

Angles that share a common side and common vertex.

• Adjacent Angles

• Complementary Angles

• Supplementary Angles

• Vertical Angles

Tags

CCSS.7.G.B.5

Angles whose measures add up to  $90\degree$  

• Adjacent Angles

• Complementary Angles

• Supplementary Angles

• Vertical Angles

Angles whose measures add up to  $180\degree$  

• Adjacent Angles

• Complementary Angles

• Supplementary Angles

• Vertical Angles

Non-adjacent angles formed by two intersecting lines that lie across from each other.

• Adjacent Angles

• Complementary Angles

• Supplementary Angles

• Vertical Angles

Same size, same length, same measure, equal

• Congruent

• Adjacent angles

• Complementary angles

Triangles with 3 congruent sides.

• Equilateral Triangle

• Isosceles Triangle

• Scalene Triangle

Triangles with 2 congruent sides.

• Equilateral Triangle

• Isosceles Triangle

• Scalene Triangle