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Use A to find the length of arc CH.

 

 Apr 15, 2020
 #1
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Arc(CB)  =  90o.

Arc(CBH)  =  90o + 57o  = 147o.

 

Perimeter of circle  =  2·pi·r  =  2·pi·60  =  120·pi cm.

 

Portion of the circle:  arc(CBH)  =  147o / 360o.

 

Length of the arc =  (147/360)·120·pi cm

 

You'll need to get the decimal answer ...

 Apr 15, 2020

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