Geometry words
Name: ______________________ Date: ____________
Write the letter of the matching definition next to each term.
1. triangle
A. A parallelogram with four equal sides
2. square
B. A particular environment or walk of life
3. rhombus
C. A straight line connecting the center of a circle with two points on its perimeter
4. chord
D. A polyhedron having a polygonal base and triangular sides with a common vertex
5. rectangle
E. A plane figure bounded by two radii and the included arc of a circle
6. diameter
F. Nearest in space or position
7. pentagon
G. A straight line connecting two points on a curve
8. radius
H. The length of a line segment between the center and circumference of a circle or sphere
9. kite
I. Greek philosopher and mathematician who proved the ___ theorem
10. circumference
J. A straight line connecting any two vertices of a polygon that are not adjacent
11. parallel
K. A parallelogram with four right angles
12. sector
L. The 90 degree ___ between two perpendicular lines
13. opposite
M. Ellipse in which the two axes are of equal length
14. pyramid
N. A government building with five sides that serves as the headquarters of the United States
15. Pythagoras
O. A word that expresses a meaning ___ to the meaning of another word
16. diagonal
P. A plane rectangle with four equal sides and four right angles
17. sphere
Q. The boundary line encompassing an area or object
18. rightangle
R. A three-sided polygon
19. circle
S. Something having the property of being analogous to something else
20. adjacent
T. Plaything consisting of a light frame covered with tissue paper