Answer:
• Cylinder:Rectangle
,
• Cone: Triangle
,
• Sphere: Circle
,
• Pyramid: Triangle
Explanation:
The perpendicular cross-section of any solid is the cross-section when the solid is sliced perpendicular to its base.
Cylinder
The perpendicular cross-section of a cylinder is a rectangle.
Cone
The perpendicular cross-section of a cone is a triangle.
Sphere
The perpendicular cross-section of a sphere is a circle.
Pyramid
A cone is an example of a pyramid. As shown above, the perpendicular cross-section of a pyramid is a triangle.
