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3 years ago

Using the approximation 3.14 for pi, what is the radius of a circle with circumference 69.1 m?

Mathematics

2 answers:

Mariana [72]3 years ago

8 0

Answer:

Hey!

Your answer is 11cm!

Step-by-step explanation:

So to get the radius from the Circumference we need both the Circumference and the value of pi...3.14

Radius = $\frac{C}{2\pi }$ ... (that's the formula)

<u>WE SUBSTITUTE IN:</u>

<u>Radius =</u> 69.1/2 x 3.14

69.1/6.28

This equals = 10.99760656765

BUT 11cm when you round it to the next whole number or 2sf

<h2><u></u></h2><h2><u>I HOPE THIS HELPED YOU!</u></h2>

Nat2105 [25]3 years ago

7 0

Answer:

11.0

Step-by-step explanation:

Circumfrence = 2 x pi x r.

making radius, r the subject of relation, you.get 11.003184713

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2 years ago

Using the approximation 3.14 for pi​, what is the radius of a circle with circumference 69.1 ​m?

Using the approximation 3.14 for pi, what is the radius of a circle with circumference 69.1 m?