Question

What is the area of the partial circle with a radius of 8 cm? Use 3. 14 for pi.

Answer 1

The area of circle is 200.96 cm²

Explanation:

Here's the required formula to find the area of partial circle :

`\longrightarrow{\pmb{\sf{Area_((Circle)) = \pi{r}^(2)}}}`

• π = 3.14
• r = radius

Substituting all the given values in the formula to find the area of partial circle :

`\begin{gathered} \qquad{\longrightarrow{\sf{Area_((Circle)) = \pi{r}^(2)}}} \\ \\ \qquad{\longrightarrow{\sf{Area_((Circle)) = 3.14{(8)}^(2)}}} \\ \\ \qquad{\longrightarrow{\sf{Area_((Circle)) = 3.14{(8 * 8)}}}} \\ \\ \qquad{\longrightarrow{\sf{Area_((Circle)) = 3.14(64)}}} \\ \\ \qquad{\longrightarrow{\sf{Area_((Circle)) = 3.14 * 64}}} \\ \\ \qquad{\longrightarrow{\sf{Area_((Circle)) \approx 200.96}}} \\ \\ \qquad\star{\purple{\underline{\boxed{\sf{Area_((Circle)) \approx 200.96 \: {cm}^(2)}}}}}\end{gathered}`

Hence, the area of circle is 200.96 cm².

`\rule{300}{2.5}`

Answer 2

• Radius=r=8cm

`\\ \tt\hookrightarrow Area=\pi r^2`

`\\ \tt\hookrightarrow Area=\pi 8^2`

`\\ \tt\hookrightarrow Area=64\pi`

`\\ \tt\hookrightarrow Area=64(3.14)`

`\\ \tt\hookrightarrow Area=200.96cm^2`