Since you are given the circumference and want to find the diameter, isolate d in the formula for circumference: C = πd.
C = πd
Divide both sides by π.
C/π = d
d = C/π
Plug in the given value for C and solve for d.
d = C/π
d = 20π/π
The pis cancel out, leaving 20 on the left side of the equation.
d = 20
Answer:
D) 20 cm
[tex]\Large\maltese\underline{\textsf{A. What is Asked}}[/tex]
If a Circle has a circumference of [tex]\bf{20\pi}[/tex], what is its diameter?
[tex]\Large\maltese\underline{\textsf{B. This problem has been solved!}}[/tex]
The equation used, here is [tex]\bf{C=\pi d}[/tex].
Let's start by putting in what C equals.
[tex]\bf{20\pi =\pi d[/tex] | divide both sides by pi
[tex]\bf{20=d}[/tex]
[tex]\cline{1-2}[/tex]
[tex]\bf{Result:}[/tex]
[tex]\bf{=d=20,\;the\;fourth\;option}[/tex]
[tex]\LARGE\boxed{\bf{aesthetics\not1\theta l}}[/tex]
∞
