Question 1

The circumference of a circle is 31.4 yards. What is the circle's diameter? C=31.4 yd Use 3.14 for .

Question 2

Explanation:

c= 31.4

c= πD

D= C/π

Question 3

$\longrightarrow$ 10 yards

$\red{\leadsto}\:$
$\textsf{Circumference \:of \:the \:circle}$
$\sf= 31.4 \:yards$

$\green{ \underline { \boxed{ \sf{Circumference \: of \: the \: circle = 2πr}}}}$

$\begin{gathered}\\\implies\quad \sf Circumference \:of \: the \: circle = 31.4 \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf 2πr= 31.4 \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf 2* 3.14 * r= 31.4 \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf 6.28 * r= 31.4 \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf r= (31.4)/(6.28) \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf r= 5 \:yards \\\end{gathered}$

$\green{ \underline { \boxed{ \sf{Diameter = 2 * radius }}}}$

$\begin{gathered}\\\implies\quad \sf Diameter = 2* 5\\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf Diameter = 10 \: yards\\\end{gathered}$

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