geometry #7

Question 1

regular tessellation

Answer 1

a repeating pattern of congruent regular polygons that completely covers a plane with no gaps or overlaps

Question 2

rotational symmetry

Answer 2

a figure that can be rotated around a point by an angle less than 360 so that the image consides with the preimage, has rotational symmetry

Question 3

semiregular tessellation

Answer 3

a repeating pattern formed by two or more polygons in which the same number of each polygon, occur in the same order at every vertex, and completely covers a plane with no gaps or overlaps

Question 4

symmetry

Answer 4

the transformation of a figure such that the image concides with the preimage

Question 5

tessellation

Answer 5

a pattern of plane figure that completely covers a plane with no gaps or overlapping

Question 6

translation symmetry

Answer 6

a figure has translation symmetry if it can be translated along a vector so that the image concides with the preimage

Question 7

vertical angle

Answer 7

the nonadjacent angles formed by two intersecting lines

Question 8

triangle

Answer 8

a three sided polygon

Question 9

2 column proof

Answer 9

a style if proof in which the statements are written in the left column and the reasons are written in the right column

Question 10

transversal

Answer 10

a line that intersects two or more coplanar lines at different points