Question

on set of mensuration is called​

Answer 1

$\huge{\boxed{\boxed{\underline{\bigstar{\mathbb{\pink{ANSWER}}}}}}}$

On set of mensuration is called​ menarche.

Answer 2

$\huge\underline\mathbb\purple{Heya \: Dost}$

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Menarche

~ The first period usually begins between twelve and fifteen years of age, a point in time known as menarche.