Vocabulary for Unit 4
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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| Acute Angle | An angle that measures less than 90 degrees.
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| Right Angle | An angle that measures exactly 90 degrees.
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| Obtuse Angle | An angle that measures more than 90 degrees.
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| Equilateral | A triangle with all equal sides.
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| Scalene | A triangle with no equal sides.
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| Isosceles | A triangle with two equal sides.
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| Complementary Angles | The sum of two or more angles that equal exactly 90 degrees.
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| Supplementary Angles | The sum of two or more angles that equal exactly 180 degrees.
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| Vertical Angles | A pair of angles that are on opposite sides of a vertex and are always equal.
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| The sum of all angles in a triangle will always equal? | 180 degrees
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| Triangle Inequality Theorem | The two shortest side lengths of a triangle must have a sum greater than the longest side length of a triangle.
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| Area of a Rectangle/Square | A = length x width
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| Area of a Parallelogram | A = base x height
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| Area of a Circle | A = pi x radius squared
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| Area of a Trapezoid | A = one half times height times the sum of base 1 and base 2
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| Area of a Triangle | A = one half times base times height
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| Volume Formula | V = area of the base times height
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| Radius | The length from the origin of a circle to the perimeter
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| Diameter | The length through a circle that passes through the origin
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| Circumference | The distance around a circle
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| What is 2D? | 2- dimensional, a flat shape, no depth
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| What is 3D? | 3-dimensional
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| Define area. | Area covers the surface or face
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| Define volume. | Volume fills a 3D object
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| Characteristics of a Prism | Prisms are 3D shapes that always have two equal, parallel bases
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| Characteristics of a Pyramid | Pyramids are 3D shapes that have one base opposite of the vertex
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| Face | A face of a 3D shape is a flat surface
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| Vertex | Where 3 or more edges intersect
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| Edge | Where two faces intersect
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| Origin | Center of a circle
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| Surface Area | The measurement to cover all the faces of a 3D object
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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.
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.
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:
missgellinck
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