Circle and Area
File: GeomB 2011 Answers 8.10.11
No Calculators: Updated: August 10, 2011
A concave polygon looks sort of like a vertex has been 'pushed in' towards the inside of the polygon.
A convex polygon has all the vertices of the polygon pointing outwards, away from the interior of the shape. Think of it as a 'bulging' polygon.
A regular polygon is a polygon which is equiangular (all angles are congruent) and equilateral (all sides have the same length). Regular polygons may be convex or star.
(5.01)
1) Describe the figure below. (convex / concave? …) [pic] regular quadrilateral – convex – rhombus - square
2) Describe the figure below. (convex / concave? …) [pic] irregular quadrilateral – convex – trapezoid
3) Describe the figure below. (convex / concave? …) [pic] irregular quadrilateral – concave 4) Describe the figure below. (convex / concave? …) [pic] regular ? – convex – hexagon
5) Describe the figure below. (convex / concave? …) [pic] irregular octagon – concave
(5.09)
6) Identify the following figure. Be specific as possible using the diagram. [pic] parallelogram
7) Identify the following figure. Be specific as possible using the diagram. [pic] parallelogram – rectangle
8) Identify the following figure. Be specific as possible using the diagram. [pic] rhombus
9) Identify the following figure. Be specific as possible using the diagram. [pic] rectangle – rhombus - square
10) Identify the following figure. Be specific as possible using the diagram. [pic] trapezoid
11) Identify the following figure. Be specific as possible using the diagram. [pic] kite
12) Identify the following figure. Be specific as possible using the diagram. [pic] trapezoid – isosceles trapezoid
(5.07)
13) A rhombus is a trapezoid. (a) Always (b) Sometimes (c) Never [pic] (c) No, Never A
No Calculators: Updated: August 10, 2011
A concave polygon looks sort of like a vertex has been 'pushed in' towards the inside of the polygon.
A convex polygon has all the vertices of the polygon pointing outwards, away from the interior of the shape. Think of it as a 'bulging' polygon.
A regular polygon is a polygon which is equiangular (all angles are congruent) and equilateral (all sides have the same length). Regular polygons may be convex or star.
(5.01)
1) Describe the figure below. (convex / concave? …) [pic] regular quadrilateral – convex – rhombus - square
2) Describe the figure below. (convex / concave? …) [pic] irregular quadrilateral – convex – trapezoid
3) Describe the figure below. (convex / concave? …) [pic] irregular quadrilateral – concave 4) Describe the figure below. (convex / concave? …) [pic] regular ? – convex – hexagon
5) Describe the figure below. (convex / concave? …) [pic] irregular octagon – concave
(5.09)
6) Identify the following figure. Be specific as possible using the diagram. [pic] parallelogram
7) Identify the following figure. Be specific as possible using the diagram. [pic] parallelogram – rectangle
8) Identify the following figure. Be specific as possible using the diagram. [pic] rhombus
9) Identify the following figure. Be specific as possible using the diagram. [pic] rectangle – rhombus - square
10) Identify the following figure. Be specific as possible using the diagram. [pic] trapezoid
11) Identify the following figure. Be specific as possible using the diagram. [pic] kite
12) Identify the following figure. Be specific as possible using the diagram. [pic] trapezoid – isosceles trapezoid
(5.07)
13) A rhombus is a trapezoid. (a) Always (b) Sometimes (c) Never [pic] (c) No, Never A