Geometry
Name: ______________________ Date: ____________
Write the letter of the matching definition next to each term.
1. acute
A. A government building with five sides that serves as the headquarters of the United States
2. obtuse
B. Ellipse in which the two axes are of equal length
3. triangle
C. A particular geographical region of indefinite boundary
4. quadrilateral
D. An eight-sided polygon
5. octagon
E. A parallelogram with four equal sides
6. pentagon
F. A quadrilateral with two parallel sides
7. parallel
G. A four-sided polygon
8. circle
H. A mark placed above a vowel to indicate pronunciation
9. rightangle
I. The 90 degree ___ between two perpendicular lines
10. radius
J. Something having the property of being analogous to something else
11. diameter
K. Corresponding in character or kind
12. trapezoid
L. The length of a line segment between the center and circumference of a circle or sphere
13. rhombus
M. The boundary line or the area immediately inside the boundary
14. line
N. State of matter with a fixed shape
15. ray
O. A position on a scale of intensity or amount or quality (plural)
16. point
P. A column of light
17. plane
Q. Rounded at the apex
18. solid
R. A formation of people or things one beside another
19. perimeter
S. A three-sided polygon
20. area
T. A straight line connecting the center of a circle with two points on its perimeter
21. degrees
U. An aircraft that has a fixed wing and is powered by propellers or jets
22. congruent
V. A geometric element that has position but no extension