Geometric Gems

14

15

12

10

13

11

17

21

8

6

3

2

5

9

4

1

7

20

19

18

16

A shape with six sides

1 horizontal

Vertical Clues

2
A flat, two-dimensional shape with straight sides
3
Line connecting two non-adjacent vertices of a polygon
5
A parallelogram with opposite equal acute angles
8
Distance across a circle through its center
10
Straight path extending in two directions without end
11
The amount of space inside the boundary of a flat object
13
Part of a line with two endpoints
14
Three-dimensional figure with circular base and one vertex
15
Solid figure formed by all points equidistant from the center
17
Ratio of the circumference of a circle to its diameter
19
Symmetry around a central point
20
Angle less than 90 degrees

Horizontal Clues

1
A shape with six sides
4
A tool used to draw and measure angles
6
Point where the three medians of a triangle intersect
7
The distance from the center of a circle to any point on its circumference
9
Lines in the same plane that never intersect
12
Shape with all sides and angles equal
16
Set of points equidistant from a given point
18
Shape with four right angles and equal opposite sides
21
Point where two or more lines meet