Please tell me the answer and how you got it

Mathematics

1 answer:

Darina [25.2K]4 years ago

7 0

Answer = 18.84ft

To find the circumference of the circle, use the equation:

Circumference = pi x diameter

(Personally, I remember it as ‘cherry, pi, delicious’ (circumference, pi, diameter))

The diameter is given, so substitute that in the equation.

Circumference = pi x 6

pi x 6 = 18.84ft

Hope this helps :)

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<h3>to understand this</h3><h3>you need to know about: </h3>

algebra

<h3>let's solve:</h3>

$\sf rewrite \: 105 \: as \: 100 + 5 : \\ \sf (100 + 5 {)}^{2}$
$\sf use \: (a + b {)}^{2} = {a}^{2} + 2ab + {b}^{2} \: to \: simplify : \\ \sf {100}^{2} + 2.100.5 + {5}^{2}$
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