Combination of solids — lesson. Mathematics CBSE, Class 10.

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In our day-to-day life, we come across a wide range of objects that are in the form of a combination of two or more solid shapes.

Let us discuss some real-life examples in this article.

1. Capsule

The capsule is a combination of two solids, cylinder and hemisphere.

Hence, to find the total surface area of the capsule is given by:

TSA of the capsule

$=$ CSA of the hemisphere

$+$ CSA of the cylinder

$+$ CSA of the hemisphere.

TSA of the capsule

$=$

$2 \pi r^2$

$+$

$2 \pi r h$

$+$

$2 \pi r^2$

$=$

$4 \pi r^2$

$+$

$2 \pi r h$

$=$

$2 \pi r (2r + h)$ square units

2. Circus tent

The circus tent is a combination of a cone and a cylinder.

3. Lollipop

The lollipop is a combination of a sphere and a cylinder.

Did you find an error?

2. Combination of solids