Random digit dialing<span> (RDD) is a method for selecting people for involvement in telephone statistical surveys by generating telephone numbers at </span>random<span>. </span>Random digit dialing<span> has the advantage that it includes unlisted numbers that would be missed if the numbers were selected from a phone book.</span>
Answer:
The Area is 72.
Step-by-step explanation:
A=1/2d^2
A=1/2(12)^2
A= 1/2(144)
A=72
<em>Hope I helped, Brainliest would be appreciated :)
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Have a fantastic day!
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<em> -Aadi x</em>
If it looks like this it's Improper 21/20