Geometry of 2D shapes
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Area | The number of square units needed to cover a given surface
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| Trapezoid | A quadrilateral with exactly one pair of parallel sides
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| Perimeter | The distance around a polygon
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| Circumference | The distance around a circle
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| Surface Area | The sum of the areas of the faces or surfaces of a three-dimensional figure
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| Prism | A polyhedron that has two congruent polygon shaped bases and other faces that are parallelograms
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| Volume | The number of cubic units needed to fill a given space
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| Parallelogram | A quadrilateral with two pairs of parallel sides
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| Diameter | A line segment that passes through the center of a circle and has end-points on the circle or the length of that segment
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| Radius | A line segment with one end-point at the center of a circle and the other end-point on the circle or that length of the segment
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| area of a rectangle | length x width
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| area of a parallelogram | base x height
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| area of a trapezium | ((a +b) x h)/2
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| area of a circle | 3.142 x radius x radius
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| Area of a triangle | A = (b x h) divided by 2
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| Circumference of circle | Pi x d
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| Perimeter of a rectangle (and parallelograms) | A = 2(L x W)
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| Triangle Area = | 1/2 x base x perpendicular height
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| Square Area = | base x base
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| Rectangle Area = | base x height
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| Parallelogram Area = | base x perpendicular height
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| Trapezium Area = | 1/2 x height x (top + bottom)
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| Circle Area = | π x r squared
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| Area (rhombus) | bxh
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| Acute Triangle | A triangle with 3 acute angles
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| Right Triangle | A triangle that has a 90 degree angle (right angle)
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| Obtuse Triangle | A triangle with one angle that is greater than 90 degrees.
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| Square | Four equal sides and four right angles
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| Rhombus | A parallelogram with four equal sides
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| Trapezoid(US)/Trapezium(UK) | A quadrilateral with exactly one pair of parallel sides
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| Pentagon | 5 sided polygon
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| Octagon | 8-sided polygon
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| Nonagon | 9 sided polygon
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| Decagon | 10 sided polygon
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| Heptagon | 7 sided polygon
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| Hexagon | 6 sided polygon
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
garfieldwhitebooi
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