Geometric Terms

Question 1

Acute

Answer 1

Angle less than 90°

Question 2

Equilateral

Answer 2

Having all sides of the same length

Question 3

Congruent

Answer 3

Identical in form

Question 4

Isosceles

Answer 4

A triangle with two sides of the same length

Question 5

Obtuse

Answer 5

An angle between 90° and 180°

Question 6

Parallelogram

Answer 6

A quadrilateral whose opposite sides are parallel and equal

Question 7

Perpendicular

Answer 7

Intersecting lines that form a 90° angle

Question 8

Polygon

Answer 8

A closed plane figure with straight lines

Question 9

Quadrilateral

Answer 9

A 4 sided polygon

Question 10

Ray

Answer 10

A straight line extending from a point

Question 11

Rhombus

Answer 11

A parallelogram with 4 equal sides

Question 12

Scalene

Answer 12

Having three sides of different lengths

Question 13

Collinear

Answer 13

Existing on the same line

Question 14

Equiangular

Answer 14

All angles are congruent

Question 15

Adjacent

Answer 15

Sharing a side or vertex

Question 16

Bisector

Answer 16

A ray splitting something into two congruent parts

Question 17

Vertex

Answer 17

A point where two lines intersect

Question 18

Coplanar

Answer 18

Existing on the same plane

Question 19

Vertical angles

Answer 19

Angles formed from an intersecting line

Question 20

Supplementary angles

Answer 20

Two angles whose sum is 180°

Question 21

Complementary angles

Answer 21

Two angles whose sum is 90°