Teaching Cross-Section of Solid Easily
- To find the cross-section of a solid, always determine the radius and height of the solid figure.
- Secondly, you may use the formula for the figure to get an appropriate result.
- For solid figures, most of the time the area of the circle formula can help.
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.
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