3 Dimensional Figures And Solid Geometry Study Cards

Enhance Your Learning with 3-Dimensional Figures and Solid Geometry Flash Cards for quick learning



3-Dimensional Figures

Geometric shapes that have three dimensions: length, width, and height.

Prism

A polyhedron with two parallel congruent bases and rectangular faces.

Pyramid

A polyhedron with a polygonal base and triangular faces that meet at a common vertex.

Cylinder

A three-dimensional figure with two parallel congruent circular bases and a curved surface.

Cone

A three-dimensional figure with a circular base and a curved surface that tapers to a point called the apex.

Sphere

A perfectly round three-dimensional figure with all points on its surface equidistant from its center.

Volume

The amount of space occupied by a three-dimensional figure, measured in cubic units.

Surface Area

The total area of all the faces and curved surfaces of a three-dimensional figure.

Rectangular Prism

A prism with rectangular bases and rectangular faces.

Triangular Prism

A prism with triangular bases and rectangular faces.

Square Pyramid

A pyramid with a square base and triangular faces.

Cone Frustum

The portion of a cone that remains after the top is cut off by a plane parallel to the base.

Platonic Solids

Five regular polyhedra: tetrahedron, cube, octahedron, dodecahedron, and icosahedron.

Tetrahedron

A polyhedron with four triangular faces.

Cube

A polyhedron with six square faces.

Octahedron

A polyhedron with eight triangular faces.

Dodecahedron

A polyhedron with twelve pentagonal faces.

Icosahedron

A polyhedron with twenty triangular faces.

Composite Figure

A figure made up of two or more simpler figures.

Translation

A transformation that slides a figure from one position to another without changing its shape or size.

Reflection

A transformation that flips a figure over a line, creating a mirror image.

Rotation

A transformation that turns a figure around a fixed point called the center of rotation.

Dilation

A transformation that changes the size of a figure without changing its shape.

Similar Figures

Figures that have the same shape but not necessarily the same size.

Congruent Figures

Figures that have the same shape and size.

Net

A two-dimensional pattern that can be folded to form a three-dimensional figure.

Cross Section

The intersection of a three-dimensional figure and a plane.

Cavalieri's Principle

If two solids have the same height and the same cross-sectional area at every level, then they have the same volume.

Sphere Volume

The volume of a sphere is given by the formula V = (4/3)πr³, where r is the radius of the sphere.

Cylinder Volume

The volume of a cylinder is given by the formula V = πr²h, where r is the radius of the base and h is the height of the cylinder.

Cone Volume

The volume of a cone is given by the formula V = (1/3)πr²h, where r is the radius of the base and h is the height of the cone.

Rectangular Prism Volume

The volume of a rectangular prism is given by the formula V = lwh, where l is the length, w is the width, and h is the height of the prism.

Triangular Prism Volume

The volume of a triangular prism is given by the formula V = (1/2)bh, where b is the base of the triangle and h is the height of the prism.

Surface Area of a Prism

The surface area of a prism is given by the formula SA = 2B + Ph, where B is the area of the base, P is the perimeter of the base, and h is the height of the prism.

Surface Area of a Pyramid

The surface area of a pyramid is given by the formula SA = B + (1/2)Pl, where B is the area of the base, P is the perimeter of the base, and l is the slant height of the pyramid.

Surface Area of a Cylinder

The surface area of a cylinder is given by the formula SA = 2πrh + 2πr², where r is the radius of the base and h is the height of the cylinder.

Surface Area of a Cone

The surface area of a cone is given by the formula SA = πrl + πr², where r is the radius of the base and l is the slant height of the cone.

Surface Area of a Sphere

The surface area of a sphere is given by the formula SA = 4πr², where r is the radius of the sphere.

Geometric Proof

A proof that uses logical reasoning and the properties of geometric figures to establish the truth of a statement.

Pythagorean Theorem

In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.

Similarity

Two figures are similar if their corresponding angles are congruent and the ratios of their corresponding side lengths are equal.

Congruence

Two figures are congruent if they have the same shape and size.

Triangle Inequality Theorem

The sum of the lengths of any two sides of a triangle is greater than the length of the third side.

Euler's Formula

For any polyhedron, the number of vertices plus the number of faces minus the number of edges is equal to 2.

Right Prism

A prism in which the lateral faces are perpendicular to the bases.

Oblique Prism

A prism in which the lateral faces are not perpendicular to the bases.

Right Pyramid

A pyramid in which the height is perpendicular to the base.

Oblique Pyramid

A pyramid in which the height is not perpendicular to the base.

Regular Pyramid

A pyramid in which the base is a regular polygon and the height is perpendicular to the base.

Frustum

The portion of a pyramid or cone that remains after the top is cut off by a plane parallel to the base.

Composite Solid

A three-dimensional figure made up of two or more simpler figures.

Similar Solids

Solids that have the same shape but not necessarily the same size.

Congruent Solids

Solids that have the same shape and size.