# Question #23b0f

##### 1 Answer

This is a volume problem using a **truncated cone** .

#### Explanation:

If you invert the flower pot upside down, you get a truncated cone:

The solution to the problem is to find the volume of the **outer** cone then subtract the volume of the **inner** cone.

The difference between the two cones is the 3 inch thick uniform wall.

There is a formula for the volume of a truncated cone:

Source: http://keisan.casio.com/exec/system/1223372110

Where,

**Volume of outer truncated cone:**

**Volume of inner truncated cone (subtract the 3" wall from each dimension):**

**Volume of material (one pot)** :

Finally, **Volume of 1000 pots** :

Answer

Hope that helped