Question

Find the circumference and area of the circle. Round to the nearest tenth. 2 m

Answer 1

• Radius=2m

Circumference:-

$\\ \bull\sf\dashrightarrow 2\pi r$

$\\ \bull\sf\dashrightarrow 4(3.14)$

$\\ \bull\sf\dashrightarrow 12.56m$

Area.

$\\ \bull\sf\dashrightarrow \pi r^2$

$\\ \bull\sf\dashrightarrow 3.14(2)^2$

$\\ \bull\sf\dashrightarrow 3.14(4)$

$\\ \bull\sf\dashrightarrow 12.56m^2$

Answer 2

Radius=2m

Circumference:-

\begin{gathered}\\ \bull\sf\dashrightarrow 2\pi r\end{gathered}

∙⇢2πr

\begin{gathered}\\ \bull\sf\dashrightarrow 4(3.14)\end{gathered}

∙⇢4(3.14)

\begin{gathered}\\ \bull\sf\dashrightarrow 12.56m\end{gathered}

∙⇢12.56m

Area.

\begin{gathered}\\ \bull\sf\dashrightarrow \pi r^2\end{gathered}

∙⇢πr

2

\begin{gathered}\\ \bull\sf\dashrightarrow 3.14(2)^2\end{gathered}

∙⇢3.14(2)

2

\begin{gathered}\\ \bull\sf\dashrightarrow 3.14(4)\end{gathered}

∙⇢3.14(4)

\begin{gathered}\\ \bull\sf\dashrightarrow 12.56m^2\end{gathered}

∙⇢12.56m

2