3 years ago

Martin knows that the relationship between the number of

Mathematics

1 answer:

sp2606 [1]3 years ago

8 0

Answer:

m = 28g

Step-by-step explanation:

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Step-by-step explanation:

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Use the formula C-2ar to find the radius, r, for a circle with a circumference of 125 centimeters. Round your answer to the

julsineya [31]

Option A

The radius of circle is 19.90 cm

<h3><u>Solution:</u></h3>

The formula for circumference of circle is given as:

$C = 2 \pi r$

Where,

"C" is the circumference of circle

"r" is the radius of circle

$\pi$ is a constant equal to 3.14

Given that, circumference = 125 cm

To find: Radius of circle

<em><u>Substitute the given value of "C" = 125 in formula</u></em>

$125 = 2 \times 3.14 \times r\\\\125 = 6.28 \times r\\\\r = \frac{125}{6.28}\\\\r = 19.90$

Thus radius of circle is 19.90 cm

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