Question

find the radius of the whosecircumference is 55 cm
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Answer 1

Answer:

Step-by-step explanation:

2pir=55

pir=27.5

22/7*r=27.5

r=27.5*7/22

r=8.75

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Answer 2

To find : radius of circle .

Given : circumference of circle is $55\ cm$

Solution :  

• As per given that we know that  circumference of circle is $55\ cm$. We are asked to find radius of circle.
• We use following formula to find circumference of circle, using this formula we find radius of circle by substituting the given values.
• Circumference of circle $= 2\pi r$

       $55= 2\times \frac{22}{7} \times r \\r = \frac{55\times 7}{44} \\r = 8.75$

Hence, radius of circle is $8.75\ cm$ .