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vocabulary
Term | Definition |
---|---|
Circle | set of points equal distance from the center, closed curve, 360 degrees |
Circumference | distance around the outside of a circle |
Radius | distance from the center of a circle to the edge, 1/2 way across |
Diameter | distance across a circle through the center, all the way across |
Pi | 3.14 |
Area of a Circle | A= pi x radius x radius |
Circumference of a Circle | C = pi x diameter |
volume | number of cubic units that fill a container, 3D |
Capacity | amount a container will hold when full |
Prism | a solid figure with 2 parallel faces that are polygons of the same shape |
Rectangular Prism | prism with rectangular faces |
Triangular Prism | prism with triangular faces |
Cube | prism with square sides and faces |
Cylinder | solid figure with 2 equal circular bases that are parallel |
Cone | solid figure with a circular base connected to a vertex (point) |
Sphere | solid figure with a curved surface in which all points on the surface are equal distance from the center |
volume of a rectangular prism | v = length x width x height |
volume of a cube | v = length x width x height |
volume of a triangular prism | v= 1/2 base x height x Height |
volume of a cylinder | v = 3.14 x r x r x H |
volume of a cone | v = 1/3 x 3.14 x r x r x H |
volume of a sphere | v = 4/3 x 3.14 x r x r x r |