Question

The circumference of a circle is 6.28 millimeters. What is the circle's diameter?

plsssss i need help!!!!!!!!

Answer 1

the diameter would be 2. i hope this helps!

Answer 2

Ⲁⲛ⳽ⲱⲉⲅ:

• Diameter = 2 mm ( approx )

`\quad{\rule{300pt}{1.5pt}}\quad`

Ⲋⲟⳑⳙⲧⳕⲟⲛ :

We are given that :

• The circumference of a circle is 6.28mm

We know that :

`\qquad\bull{\boxed {\mathfrak{Circumference = 2 \pi r }}}\bull`

Therefore,

`\quad\dashrightarrow\quad \sf { 6.28 = 2 \pi r }`

`\quad\dashrightarrow\quad \sf {r = (6.28)/(2\pi) }`

`\quad\dashrightarrow\quad \sf {r = (6.28* 7)/(22* 2) }`

`\quad\dashrightarrow\quad \sf {r =\cancel{(43.64)/(44)} }`

`\quad\dashrightarrow\quad \sf {r = 0.9989 }`

As we know,

`\quad\dashrightarrow\quad \sf { Diameter = 2* radius}`

`\quad\dashrightarrow\quad \sf { Diameter = 2* 0.9989}`

`\quad\dashrightarrow\quad \sf { Diameter = 1.98 }`

`\quad\dashrightarrow\quad {\pmb{\sf {Diameter = 2 mm ( approx ) }}}`

`\rule{300pt}{2pt}`