Out here asap the last it says how many units wide is the rectangle

5m^5n^4

Step-by-step explanation:

Divide the length (5m^4n^2) into the area (25m^9n^6) to obtain the width:

25m^9n^6

= 5 m^(9-4)n(6-2)  = 5 m^5n^4

 5 m^4n^2

The width of the rectangle is 5m^5n^4.

< 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⭐