+0  
 
+3
174
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What is the area of a circle if the diameter is 21 and you have to use 22/7 for pi?

Guest Mar 14, 2017
 #1
avatar+24 
0

Well

With 22/7 and 21, the 21 and 7 cancel. so it's 3*22 which is 66

LazDaUber  Mar 14, 2017
 #2
avatar+12560 
+5

radius = 10.5

 

22/7 x 10.5^2 =346.5 sq units

ElectricPavlov  Mar 14, 2017

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