Triangle Vocabulary

Question 1

Altitude

Answer 1

Line extending from any vertex creating a right angle with the opposite side

Question 2

Median

Answer 2

Line extending from any vertex to the midpoint of the opposite side

Question 3

Scalene

Answer 3

Triangle with no congruent sides or angles

Question 4

Centroid

Answer 4

Point where all 3 medians intersect

Question 5

Property of a centroid

Answer 5

Divides median into a 2:1 ratio

Question 6

Point of concurrency

Answer 6

Point at which lines intersect

Question 7

Concurrent

Answer 7

When 3 or more lines intersect at 1 point

Question 8

Triangles have how many sets of concurrent lines?

Answer 8

4

Question 9

Circumcenter

Answer 9

Point were all 3 perpendicular bisectors meet

Question 10

Property of a circumcenter

Answer 10

Equidistant from all 3 vertices

Question 11

A circle created by placing the compass on the circumcenter of a triangle and passing through each vertices is

Answer 11

Circumscribed about the triangle

Question 12

Incenter

Answer 12

Point were all 3 angle bisectors meet

Question 13

A circle created by placing the compass on the incenter of a triangle and passing through point perpendicular to side from incenter is

Answer 13

Inscribed in the circle

Question 14

Orthocenter

Answer 14

Point where all 3 altitudes meet

Question 15

Circumcenter =

Answer 15

Perpendicular bisector

Question 16

Incenter =

Answer 16

Angle bisector

Question 17

Centroid =

Answer 17

Medians

Question 18

Orthocenter =

Answer 18

Altitudes