Question 1185372
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A circle with diameter 10 centimeters has an arc that is made from a central angle with degree measure 75. 
Find the arclength in centimeters. The following steps and conclusion form part of the solution: 
Step 1: Write the formula for arclength, s = rt. 
Step2: Substitute r = 10 and t = 75 into the formula, s = (10)(75). 
Step 3: Simply to s = 750. Therefore, the arclength is 750 centimeters. 
Is the suggested solution correct? Explain. *
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The suggested solution is WRONG.



It is true,  that the formula for the arc length is   s = r*t,


but the angle  " t "   in this formula is in  RADIANS,  not in degrees.
 


The second notice to your post is that the radius is not  10  in this case.

If the diameter is  10  centimeters  (given),  then the radius is  5  centimeters.



Answered,  explained and completed.



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In whole,  the posted text looks idiotic.



If your teacher gives you such problems,  my advise to you is to change the class and the teacher as soon as you can.