3 dimensional geometry Flashcards
(11 cards)
What is a Solid?
3 dimensional figure that takes up space
What is a Face?
Side or Base of a Solid.
What is a Lateral Face?
A face that is not the base.
What is an Edge?
A segment where faces of a Solid meet.
What is a Vertex?
A point where 3 or more edges meet.
What is a cross section?
2 dimensional shape formed when a solid is sliced.
How can you tell if a cross section is going to be same size and shape of a solid’s base?
If a prism or a cylinder is slices parallel to the base.
If you cross section a pyramid perpendicular to the base, what shape is it?
Triangle.
Will a cross section be the same size if you cut a cone parallel to the base?
Same Shape, Smaller in Size.
How would you find Surface area of prism solid?
Make a net an find Area like composite figure.
What is the Formula for Finding Volume of a solid?
base * height