Exponent Worksheet Page 4

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Use   t he   f ollowing   f ormulas   t o   a nswer   t he   f ollowing   q uestions:  
!
Area   =   �� ��
,     C ircumference   =   2 ����   ( or   �� ��),   d   =   2 r   w here   d   =   d iameter   a nd   r   =   r adius  
Use   t he   s ymbol,   �� ,   f or   p i,   w here   n ecessary.     E xact   a nswers   o nly.     D o   n ot   u se   d ecimals.  
 
24. Find   t he   c ircumference   o f   a   c ircle   w ith   r adius   2 5.  
 
 
25. Give   t he   a rea   o f   a   c ircle   w ith   d iameter   2 4.  
 
 
26. If   t he   a rea   i s   2 56  ��,   g ive   t he   d iameter   o f   t he   c ircle.  
 
 
 
 

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