Question 1

Given a cone with the height of 10cm and the base radius
of
9cm. Find the volume of this
cone. Take **π**
as 3.14.

Select and check your answer...

Check Answer

Step 1

The picture below shows the cone with the height of 10cm and base radius of 9cm.

Step 2

To calculate the volume, we start with the formula for the volume of a cone. Note that **h** is the height and **r** is the base radius of the cone.

Step 3

Since the values for **r**, **h**, and **π** are given, we can substitute **r** with 9, **h** with 10 and **π** with 3.14. After substituting these values, we can calculate for **V** as shown below:

Step 4

Now, the calculated number **847.8** only has a meaning if we include the unit for it. Since the given units are in cm, the unit for volume will be cm^{3}. Hence:

V = 847.8 cm^{3}

Step 5

Clearly, the answer is D.

To close the steps,
volume of a cone practice page