Title: Math 7 Cross Sections of Solids
Course: quiz duplicate error

Q: Describe the cross section formed by a plane parallel to the base of a square pyramid as shown:

[Image: horizontal slice of square pyramid]
- circle (There is no way a cross section of this pyramid would be a circle. Try again.)
- square (Correct. Any cross section parallel to the base will be the same shape as the base.)
- triangle (Any cross section parallel to the base will be the same shape as the base. If the cross section were perpendicular, then it would be a triangle.)
- hexagon (Any cross section parallel to the base will be the same shape as the base.)
A: square

Q: Describe the cross section formed by a plane perpendicular to the base of a square pyramid as shown:

[Image: perpendicular to base cross section of square pyramid]
- circle (There is no way a cross section of this pyramid would be a circle. Try again.)
- square (If the cross section was parallel to the base, it would be a square. But this cross section is perpendicular to the base (at 90 degree angles from the base).)
- triangle
- hexagon (A cross section perpendicular to the base of any pyramid would be a triangle.)
A: triangle

Q: Describe the cross section of a plane on an angle (slanted) to a square pyramid as shown:

[Image: Plane slicing square pyramid on a slant]
- circle (There is no way any cross section of this pyramid would be a circle. Try again.)
- square
- triangle
- hexagon
A: square / triangle

Q: Describe the cross section formed by a plane parallel to the bases of a cylinder.
- circle
- rectangle (The base of the cylinder is a circle, so any cross section parallel to it would be a circle also.)
- triangle (I don't see how you would get a triangle cross section from a cylinder. Try again.)
- ellipse (an oval-like shape) (Close, but remember the cross section is parallel to the base.)
A: circle

Q: Describe the cross section formed by a plane perpendicular to the base of a cylinder.
- circle (If the cross section was parallel to the base of the cylinder, it would be a circle. But this cross section is perpendicular to the base.)
- rectangle
- triangle (I don't see how you could get a triangle cross section from a cylinder. Try again.)
- ellipse (an oval-like shape) (Think again. The cross section would have flat ends on each of the bases of the cylinder.)
A: rectangle

Q: Describe the cross section formed by a plane at angle (slanted) to the base of a cylinder.

The plane does not cut through the bases, only the sides.
- circle
- rectangle
- triangle
- ellipse (an oval-like shape)
A: ellipse (an oval-like shape)

Q: Describe the cross section formed by a plane parallel to the bases of a triangular prism.
- triangle
- rectangle (Any cross section parallel to the base will be the same shape as the base.)
- circle (Any cross section parallel to the base will be the same shape as the base.)
- trapezoid (Any cross section parallel to the base will be the same shape as the base.)
A: triangle

Q: Describe the cross section formed by a plane perpendicular to the bases of a triangular prism.
- triangle (If the solid was a pyramid, this would be the correct answer. But it is a prism with two triangular bases.)
- rectangle
- circle (I don't see a way to get a circle cut out of a triangular prism. Try again.)
- trapezoid (If you cut perpendicularly, you will have the same length on the top base as on the bottom base.)
A: rectangle

Q: Describe the cross section formed by a plane parallel  to the bases of the trapezoidal prism as shown:

[Image: parallel to the bases slice of a trapezoidal prism]
- triangle (A cross section parallel to the base will be the same shape as the base.)
- rectangle (A cross section perpendicular to the base of this prism will be a rectangle, but this one is parallel to the base.)
- trapezoid
- pentagon (A cross section parallel to the base will be the same shape as the base.)
A: trapezoid

Q: Describe the cross section formed by a plane perpendicular to the bases of the trapezoidal prism as shown:

[Image: perpendicular to bases slice of trapezoidal prism]
- triangle (This cross section shape will have four sides.)
- rectangle
- trapezoid (It looks like the sides of the cross section shape will be slanted, but they are actually at right angles.)
- pentagon (It looks like the sides of the cross section shape will be slanted, but they are actually at right angles.)
A: rectangle

Q: What is the shape formed by the cross section of the plane and the octahedron shown?

[Image: horizontal cross section octahedron]

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- square
- triangle (The cross section shape has four sides.)
- hexagon (The cross section shape has four sides.)
- circle (The cross section shape has four sides.)
A: square

Q: What is the shape formed by the cross section of the plane and the octahedron shown?

[Image: vertical cross section through apex of octahedron]

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- square (The corners are not right angles.)
- triangle (The shape of the cross section has four sides.)
- hexagon (The shape of the cross section has four sides.)
- rhombus
A: rhombus

Q: What is the shape formed by the cross section of the plane and the octahedron shown?

[Image: slant cross section octahedron]

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- square (The corners are not right angles.)
- triangle (The cross section will have more sides than three.)
- hexagon
- rhombus (The cross section has more sides than four.)
A: hexagon

Q: Describe the cross section formed by the plane and the cube shown:

[Image: perpendicular cross section of cube through corner]

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- square (Some of the sides are longer than others)
- rectangle
- triangle (The cross section shape has four sides.)
- pentagon (The cross section shape has four sides.)
A: rectangle

Q: Describe the cross section formed by the plane and the cube shown:

[Image: perpendicular cross section of cube through corner]

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- square (Some of the sides are longer than others)
- rectangle
- triangle
- pentagon
A: rectangle

Q: Describe the cross section formed by the plane and the pentagonal prism shown:

[Image: slant cross section of pentagonal prism]

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- square (Some of the sides are longer than others)
- rectangle
- triangle (The shape of the cross section has four sides.)
- pentagon (The shape of the cross section has four sides.)
A: rectangle