Question

Try These
Prepare a table of estimated mean, deviations of the above cases. Observe
the average of deviations with the difference ofestimated mean and actual
mean. What do you infer?
(Hint: Compare with average deviations]
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Answer 1

Step-by-step explanation:

Perimter=sum of all lengths of sides of triangle

⇒ Perimeter =3a {a= side of triangle }

⇒45=3a

⇒a=15cm.

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