Some one explain all the steps!! i will report if you dont!

21x4=84units

Step-by-step explanation:

Well, if the perimeter is 28, then 28/4=7units, is each side of the square. Right? So, if we scale it up by a factor of 3, or 7 x 3=21 units, the side of the new square. Therefore 21 x4 =84units, the perimeter of the new square.

if he is naked in public on purpose then yes. that is a crime and you should call the police as he could be a threat to females/ might flash.

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐