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Geometry Flash Cards -JW Alvey
Geometry Flash Cards - JW Alvey
21
Mathematics
4th Grade
03/31/2008

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Cards

Term
What is a plane figure?
Definition
A figure that lies on a flat surface. Examples: triangles, square, rectangle."
Term
What is 2 dimensional figure?
Definition
A 2 dimensional figure is the same as a plane figure.
Term
What is a polygon?
Definition

Any closed plane figure made of line segments. (remember that line segments are straight)

 

 

Term
What are 5 types of polygon?
Definition
Triangles, quadrilateral, (square and rectangle), pentagon, hexagon, octagon."
Term
What polygons have 4 right angles?
Definition
Squares and rectangles.
Term
What are some shapes that have parallel lines?
Definition
Squares, rectangles and rhombus
Term
What are examples of 3 dimensional figures?
Definition
Cube, rectangular prism, cone sphere.
Term
what do circles and spheres have in common?
Definition
All points are the same distance from the center. The both have curved edges.
Term
What are the four types of angles
Definition
Right, acute, obtuse and straight.
Term
What are the 3 types of triangles
Definition
Right, acute, obtuse.
Term
Right angles....
Definition
must have one right angle (90 degrees) in them.
Term
Acute angles…
Definition
must have one angle less than 90 degrees.
Term
Obtuse angles ….
Definition
must have one angles wider than 90 degrees.
Term
What are congruent figures?
Definition
Figures that have the same size and shape.
Term
What are turns?
Definition
To rotate a figure
Term
What are slides?
Definition
To move a figure in one direction.
Term
What are similar figures?
Definition
Figures that have the same shape but they may be different sizes.
Term
What is a perimeter?
Definition
The outside line of a figure
Term
How do you mind the perimeter of a figure?
Definition
Add together the length of each size.
Term
What is an area of a figure?
Definition
The total area that covers the whole figure.
Term
How do you find the area of a figure
Definition
Multiply length x width.
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