Vocabulary
What is a polygon?
Closed 2D figure made up of 3 or more line segments that do not intersect.
How many lines of symmetry in a parallelogram?
0
Evaluate:
-13 + 4 - 1
-10
Triangle ABC is congruent to triangle DEF.
Angle C is congruent to Angle__?
F
What is the definition of congruent?
The word 'congruent' means 'exactly equal' in terms of shape and size.
The number of lines of symmetry in a regular polygon equals ...?
the number of sides the polygon has.
-2(20)
-40
Heptagon DYNAMIC is congruent to heptagon COMPLEX.
Line segment MP is congruent to line segment ___?
NA
What is the definition and symbol of similar?
Similar mean when two figures are of the same shape but are of different sizes. Congruent interior angles.
What is the number of a regular decagon?
10
-10(-17)
170
Pentagon PXTYZ is congruent to Pentagon UIOTY.
Is angle ZPX congruent to angle YIU?
No, ZPX is congruent to YUI
Ms. Ragland walked in a straight line from her desk 4 feet, turned right 90 degrees stopped and helped a student and then walked 3 feet turned 45 degrees to help another student and turned 45 degrees walked backed to her desk. What figure did she make, and was it a non-polygon, irregular polygon, or regular polygon.
Irregular, right triangle
What is a regular polygon?
Closed 2D figure where all sides have equal lengths and all interior angles have equal measures.
How many lines of symmetry in a regular hexagon?
6
12/-2 -8
-14
Hexagon ABCDEF is similar to hexagon ZYXWVU.
Are angles EFA and VUZ congruent?
Yes
Grace dug a hole that was 18 inches below the surface. Graham dug a hole that was 2 inches more than half of Grace's hole. What is the measure of the hole?
-7 inches
What does the word Polygon mean?
Poly-means ''many'' and -gon means ''angle''
How many lines of symmetry in a regular hendecagon?
11
-360/-8 - 50
-5
Hexagon ABCDEF is similar to hexagon ZYXWVU.
Are line segments DE and WV congruent?
No, the are not congruent -similar but different lengths.
Evaluate:
-|-144/12| - (-12) + 0.5 - 3
-2.5 or -5/2