Question

please answer me now..
i will mark u as brainlist ?.

Answer 1

Answer:

PLS MARK E AS BRAINLIST

ONLY ONE BRAINLIST WANTED PLS

CAN YOU DO THIS PLS

Step-by-step explanation:

Using formal, for a polygon

⇒a=2rsin(πn)

Where, a= side of the polygon

⇒         r= radius of circle

⇒         n= number if sides of the polygon

Now, n=12,    r=6cm

∴  0=2×6sin(180°12)

       =12sin15°

       =3.1cm

Hence, the answer is 3.1cm.

hope this help you

Answer 2

Answer:

20 cm is ans

1440 is correct answer

Hope it is helpful

Step-by-step explanation:

Mark me as Branliest answer