Answer:
1386cm squared
Step-by-step explanation: first find the diameter.
132=pi x diameter
132=22/7xd
multiply both sides by 22/7 and you'll get 42cm
then find the area by doing this.
22/7x21x21 which gives you 1386cm squared.
the 21 is the radius.
The answer is 23/40 . Hope this helps
Answer:
True
Step-by-step explanation:
Control groups in experiments ar egroups that are separated from the others involved in which the independent variable being tested cannot influence the results. Control groups can also be separated into two groups which consist of positive nad negative.
Hope this Helps!
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The best and most correct answer among the choices provided by the question is </span> <span>9:3:3:1</span> .
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Hope my answer would be a great help for you. </span>
