Match the following:

1. diagonal cross section of a cylinder

2. cross section parallel to the base of a cone

3. shape created when a semi-circle is rotated about the y-axis

4. diagonal cross section through the widest part of a sphere

5. perpendicular cross section of a cone

a. sphere

b. triangle

c. great circle

d. ellipse

e. circle

Answers

1). Eclipse

2). Circle

3). Sphere

4). Great circle

5). Triangle

Explanation

1). When a cylinder is bisected diagonally is forms a shaped that looks like an eclipse.

2). A cone has circular base. If it is cut such that it cross-section is parallel to the base then it will be a circle.

3). When you rotate a semi-circle about its axis it will form a sphere.

4). If a sphere is cut along its widest part it would form the great circle.

5). A triangle is formed when a cone is cut from the vertex to the centre of its base.