The expression or representation of the intersection of a figure by a plane along its axis is known as the cross-section of solid. It is a shape that is obtained when solid figures like spheres, cones, and cylinders are cut by a plane. For example, when a cylinder is cut by a plane, the cross-section will be a circle.
Here is an example to solve a question on cross-sections of solids. Let’s look at the given example mentioned below to understand more about the cross-sections of solids.
Q. Find the cross-section of a cylinder whose height is 15 cm and radius is 4 cm?
Step 1: Determine the height and radius of the cylinder.
So,
Height of the cylinder = 15 cm
Radius of the cylinder = 4 cm
Step 2: Use the cross-section of the cylinder formula. ( the cross-section obtained is a circle ) . Hence, we use the area of the circle formula.
Πr.r where r is the radius.
3.14 * 4 . 4 = 50.24 cm square units.
Hence, the cross-section is equivalent to 50.24 cm square units.
You can download and print these super fun cross-sections of solid worksheets from here for your students. You can also try our Identify Cross Sections Of Solids Problems and Identifying Cross Sections Of Solids Quiz as well for a better understanding of the concepts.
