Worksheet

# Identifying Cross Sections of Solids Worksheet

## 4 problems

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.

Surface Area And Volume
7.G.A.3

## 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 formul...

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