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 number 1        In the diagram below, the area of  is 60. What is the length of side ?

 

Number 2        Two circles are drawn below. The diameter of the smaller circle is a radius of the larger circle. What is the ratio of the smaller circle's circumference to the larger circle's circumference?

Give your answer in fully simplified form. It should look like "x:y", where x and y are replaced by integers.

 Mar 13, 2021
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Please clarify your question     the area of WHAT = 60?

 

 

 

2)   circumference = pi * d 

          larger circle diameter = d         circumference =  pi * d

           smaller circle diameter = 1/2 d   circumference = pi * 1/2 d

 

ratio  s/m   =   pi * 1/2d / pi * d     =   1/2 / 1    = .5 / 1 =   1/2

 Mar 13, 2021

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