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Math
Geometry
Unit 5/6 - Geometry/Volume, Area, Perimeter
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KISD Fourth Grade Math
Terms in this set (39)
Acute
An angle measuring less than a right angle.
Obtuse
An angle measuring larger than a right angle.
Parallel
Lines that will never meet, no matter how long you stretch them (like railroad tracks!)
Perpendicular
Intersecting at or forming right angles
Picture Form
Solving a problem pictures
Reflection
The image of something as reflected by a mirror (or other reflective material)
Right Angle
The 90 degree angle between two perpendicular lines
Rotation
The act of rotating as if on an axis
Transformations
Functions that changes the position or direction of a shape
Translations
When an object slides a given distance in a given direction
Plane Figure
A two-dimensional shape
Sides
Line segments that form the polygon
Vertex (Vertices)
The point where several edges come together
Angle
The space between two lines or planes that intersect
Polygon
A closed plane figure bounded by straight sides
Triangle
A three-sided polygon
Square
A plane rectangle with four equal sides and four right angles
Rectangle
A parallelogram with four right angles
Quadrilateral
A four-sided polygon
Parallelogram
A quadrilateral whose opposite sides are both parallel and equal in length
Rhombus
A parallelogram with four equal sides
Trapezoid
A quadrilateral with one set of parallel sides
Pentagon
A five-sided polygon
Hexagon
A six-sided polygon
Octagon
An eight-sided polygon
Space Figure
A three-dimensional figure that has length, width, and height
Edges
The intersection of faces of a 3-D figure
Faces
The flat surfaces of a 3-D figure
Cone
A shape whose base is a circle and whose sides taper up to a point
Cylinder
A solid bounded by a cylindrical surface and two parallel planes (the bases)
Cube
A three-dimensional shape with six square or rectangular sides
Rectangular Prism
A solid figure in which all six faces are rectangles
Triangular Prism
A prism whose bases are triangles
Square Pyramid
A solid figure with a square base and four faces that are triangles
Sphere
Any spherically shaped artifact
Triangular Pyramid
A three-dimensional figure that has four triangular faces
Capacity
The amount that can be contained
Volume
The amount of 3-dimensional space occupied by an object
Cubic Units
Used to measure volume. Tells the number of cubes of a given size it will take to fill a 3-D figure.
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Verified questions
GEOMETRY
Name the ray that ∠PQR and ∠SQR share.
GEOMETRY
∠ABD and ∠BDE are complementary. Find the measures of both angles. m∠ABD = (5y + 1)°, m∠BDC = (3y - 7)°
GEOMETRY
Determine whether the polygons are always, sometimes, or never similar. Explain your reasoning. two isosceles triangles
GEOMETRY
Make a conjecture about each value or geometric relationship. the relationship between AB and the set of points equal distance from A and B