Question

Among the following, which one is/are correct?

• A. The slant height is the longest side of a pyramid.
• B. The section between the base and a plane parallel to the base of a solid is known as frustum.
• C. All the surface of a cuboid are rectangular.
• D. For a cylinder, the top, the bottom and the walls of the cylinder determine the total surface area.

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A The slant height is the longest side of a pyramid.
B The section between the base and a plane parallel to the base of a solid is known as frustum.
C All the surface of a cuboid are rectangular.
D For a cylinder, the top, the bottom and the walls of the cylinder determine the total surface area.

From the property of pyramid,rectangle and cylinder and from definition of frustum
The slant height is the longest side of a pyramid.
The section between the base and a plane parallel to the base of a solid is known as frustum.
All the surface of a cuboid are rectangular.
For a cylinder, the top, the bottom and the walls of the cylinder determine the total surface area.
Hence, all options are true