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Lorna O'Reilly

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Cards in this guide (26)
How do you find the lateral surface of a triangular prism

The lateral area [L] of a right prism with base perimeter [P] and height [h] is L=Ph.

What is a blackbody radiator

A blackbody radiator, also known as a cavity radiator, is an object or system which absorbs all radiation. It then re-radiates the energy which is characteristic of the radiating system.

A cone is a polyhedron

No, it is not.

Which polyhedron has more faces than a tetrahedron but fewer faces than an octahedron

Hexahedron

Which of the following does not have triangular faces

dodecahedron

Hexahedron

newtest3

A hexahedron is a prism whose base is a

Square

Which of the following Platonic solids is also a cube

hexahedron

The dodecahedron can be constructed from the repetitive folding of

regular pentagons

The only Platonic solid with less than five faces is what

tetrahedron

All prisms are Platonic solids

false

The octahedron can be constructed from the repetitive folding of

equilateral triangles

What is the surface area of the cube below

There is no specific cube size mentioned here, however; the formula to find size of the cube is 6a2 (square). Thus if the side is 8", the surface area would be 6 x 8 x 6 = 384.

Is a cylinder a platonic solid

No. All the faces of a Platonic solid are identical regular polygons.

Is it true that to find the surface area of a three dimensional figure you must find the area of each of its faces and then add them together

TRUE: To find the surface area of a three dimensional figure, you must find the area of each of its faces and then add them together.

Consider a regular pyramid where p is the perimeter of the base s is the slant height BA is the base area and LA is the lateral area What is a valid formula for the surface area

SA=BA+LA

SA=BA+1/2ps

Does a hexagonal prism have 6 faces

No, eight faces.

What is the surface area of the rectangular prism below 8 8 19

There is no rectangular prism below 8 8 19.

Do cones and prisms only have one base

Cones and pyramids have only one base, but prisms have multiple bases.

How many faces are pentagons on a truncated icosahedron

12 faces on a truncated icosahedron are pentagons. (The other 20 faces are hexagons.)

Which of the following choices describe the bases of a cylinder A polygons B Discs C Parallel D Congruent

A cylinder has parallel discs bases that are congruent in size.

Are The Shapes Of The Horizontal Cross-sections Of The Cylinder Below Are All Discs Of The Same Radius.

True

What following figures have 12 edges

A cuboid or a cube has 12 edges, 6 faces and 8 vertices

Which of tge following have at least two congruent parallel bases

Cylinder, Cube, Prism.

What is most clearly a theme in The Great Gatsby

Immortality leads to suffering

Is it true or false a cone a solid made from a polygonal base a point in the same plane as the base and all point between them

False

Which of the following are not polyhedrons

Cone, cylinder.

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