Question

radii

Radius of Bottom Circle: 15 ft
Radius of Middle Circle: 12 ft
Radius of Top Circle: 9 ft

Show the Calculations by using

Use 3.14 ( pi)

Answer 1

To calculate the areas of the circles using the formula for the area of a circle, you can use the formula:

\[
\text{Area} = \pi r^2
\]

where \( r \) is the radius of the circle, and \( \pi \) is approximately 3.14.

### 1. Area of the Bottom Circle
- Radius (\( r \)) = 15 ft
\[
\text{Area} = 3.14 \times (15)^2
\]
\[
= 3.14 \times 225
\]
\[
= 706.5 \, \text{ft}^2
\]

### 2. Area of the Middle Circle
- Radius (\( r \)) = 12 ft
\[
\text{Area} = 3.14 \times (12)^2
\]
\[
= 3.14 \times 144
\]
\[
= 452.16 \, \text{ft}^2
\]

### 3. Area of the Top Circle
- Radius (\( r \)) = 9 ft
\[
\text{Area} = 3.14 \times (9)^2
\]
\[
= 3.14 \times 81
\]
\[
= 254.34 \, \text{ft}^2
\]

### Summary of Areas:
- **Bottom Circle Area:** 706.5 ft²
- **Middle Circle Area:** 452.16 ft²
- **Top Circle Area:** 254.34 ft²